Home / 3,150.76-4,350.72-1,973.80

Finding the Fourth Proportional to 3,150.76, 4,350.72 and 1,973.80

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Solution

The fourth proportional to 3,150.76, 4,350.72 and 1,973.80 is: 2,725.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,150.76 : 4,350.72 = 1,973.80 : x
  2. Step 2: Convert to fraction form
    3,150.76/4,350.72 = 1,973.80/x
  3. Step 3: Cross multiply
    3,150.76x = 4,350.72 × 1,973.80
  4. Step 4: Simplify right side
    3,150.76x = 8,587,451.14
  5. Step 5: Solve for x
    x = 8,587,451.14/3,150.76
  6. Step 6: Final answer
    x = 2,725.52

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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.