Home / 5,487.38-8,231.35-3,146.76

Finding the Fourth Proportional to 5,487.38, 8,231.35 and 3,146.76

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Solution

The fourth proportional to 5,487.38, 8,231.35 and 3,146.76 is: 4,720.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,487.38 : 8,231.35 = 3,146.76 : x
  2. Step 2: Convert to fraction form
    5,487.38/8,231.35 = 3,146.76/x
  3. Step 3: Cross multiply
    5,487.38x = 8,231.35 × 3,146.76
  4. Step 4: Simplify right side
    5,487.38x = 25,902,082.93
  5. Step 5: Solve for x
    x = 25,902,082.93/5,487.38
  6. Step 6: Final answer
    x = 4,720.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.