Home / 5,688.97-7,851.24-3,171.90

Finding the Fourth Proportional to 5,688.97, 7,851.24 and 3,171.90

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Solution

The fourth proportional to 5,688.97, 7,851.24 and 3,171.90 is: 4,377.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,688.97 : 7,851.24 = 3,171.90 : x
  2. Step 2: Convert to fraction form
    5,688.97/7,851.24 = 3,171.90/x
  3. Step 3: Cross multiply
    5,688.97x = 7,851.24 × 3,171.90
  4. Step 4: Simplify right side
    5,688.97x = 24,903,293.04
  5. Step 5: Solve for x
    x = 24,903,293.04/5,688.97
  6. Step 6: Final answer
    x = 4,377.47

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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.