Home / 5,425.93-7,487.40-3,187.90

Finding the Fourth Proportional to 5,425.93, 7,487.40 and 3,187.90

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Solution

The fourth proportional to 5,425.93, 7,487.40 and 3,187.90 is: 4,399.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,425.93 : 7,487.40 = 3,187.90 : x
  2. Step 2: Convert to fraction form
    5,425.93/7,487.40 = 3,187.90/x
  3. Step 3: Cross multiply
    5,425.93x = 7,487.40 × 3,187.90
  4. Step 4: Simplify right side
    5,425.93x = 23,869,082.46
  5. Step 5: Solve for x
    x = 23,869,082.46/5,425.93
  6. Step 6: Final answer
    x = 4,399.08

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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.