Home / 6,875.28-9,487.90-3,731.47

Finding the Fourth Proportional to 6,875.28, 9,487.90 and 3,731.47

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Solution

The fourth proportional to 6,875.28, 9,487.90 and 3,731.47 is: 5,149.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,875.28 : 9,487.90 = 3,731.47 : x
  2. Step 2: Convert to fraction form
    6,875.28/9,487.90 = 3,731.47/x
  3. Step 3: Cross multiply
    6,875.28x = 9,487.90 × 3,731.47
  4. Step 4: Simplify right side
    6,875.28x = 35,403,812.08
  5. Step 5: Solve for x
    x = 35,403,812.08/6,875.28
  6. Step 6: Final answer
    x = 5,149.43

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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.