Home / 5,425.77-7,487.50-3,187.85

Finding the Fourth Proportional to 5,425.77, 7,487.50 and 3,187.85

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Solution

The fourth proportional to 5,425.77, 7,487.50 and 3,187.85 is: 4,399.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,425.77 : 7,487.50 = 3,187.85 : x
  2. Step 2: Convert to fraction form
    5,425.77/7,487.50 = 3,187.85/x
  3. Step 3: Cross multiply
    5,425.77x = 7,487.50 × 3,187.85
  4. Step 4: Simplify right side
    5,425.77x = 23,869,018.91
  5. Step 5: Solve for x
    x = 23,869,018.91/5,425.77
  6. Step 6: Final answer
    x = 4,399.19

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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.