Home / 7,338.75-10,128.15-4,195.14

Finding the Fourth Proportional to 7,338.75, 10,128.15 and 4,195.14

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Solution

The fourth proportional to 7,338.75, 10,128.15 and 4,195.14 is: 5,789.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,338.75 : 10,128.15 = 4,195.14 : x
  2. Step 2: Convert to fraction form
    7,338.75/10,128.15 = 4,195.14/x
  3. Step 3: Cross multiply
    7,338.75x = 10,128.15 × 4,195.14
  4. Step 4: Simplify right side
    7,338.75x = 42,489,007.19
  5. Step 5: Solve for x
    x = 42,489,007.19/7,338.75
  6. Step 6: Final answer
    x = 5,789.68

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Find fourth proportional to 3,669.38, 5,064.08 and 2,097.57
Half scale
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Double scale
Find fourth proportional to 7,339.75, 10,129.53 and 4,196.14
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.