Home / 2,316.75-3,197.14-1,385.25

Finding the Fourth Proportional to 2,316.75, 3,197.14 and 1,385.25

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Solution

The fourth proportional to 2,316.75, 3,197.14 and 1,385.25 is: 1,911.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,316.75 : 3,197.14 = 1,385.25 : x
  2. Step 2: Convert to fraction form
    2,316.75/3,197.14 = 1,385.25/x
  3. Step 3: Cross multiply
    2,316.75x = 3,197.14 × 1,385.25
  4. Step 4: Simplify right side
    2,316.75x = 4,428,834.72
  5. Step 5: Solve for x
    x = 4,428,834.72/2,316.75
  6. Step 6: Final answer
    x = 1,911.66

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Half scale
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Double scale
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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.