Home / 5,306.16-7,961.40-3,115.92

Finding the Fourth Proportional to 5,306.16, 7,961.40 and 3,115.92

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Solution

The fourth proportional to 5,306.16, 7,961.40 and 3,115.92 is: 4,675.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,306.16 : 7,961.40 = 3,115.92 : x
  2. Step 2: Convert to fraction form
    5,306.16/7,961.40 = 3,115.92/x
  3. Step 3: Cross multiply
    5,306.16x = 7,961.40 × 3,115.92
  4. Step 4: Simplify right side
    5,306.16x = 24,807,085.49
  5. Step 5: Solve for x
    x = 24,807,085.49/5,306.16
  6. Step 6: Final answer
    x = 4,675.15

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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.