Home / 5,306.85-7,319.16-3,712.91

Finding the Fourth Proportional to 5,306.85, 7,319.16 and 3,712.91

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Solution

The fourth proportional to 5,306.85, 7,319.16 and 3,712.91 is: 5,120.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,306.85 : 7,319.16 = 3,712.91 : x
  2. Step 2: Convert to fraction form
    5,306.85/7,319.16 = 3,712.91/x
  3. Step 3: Cross multiply
    5,306.85x = 7,319.16 × 3,712.91
  4. Step 4: Simplify right side
    5,306.85x = 27,175,345.76
  5. Step 5: Solve for x
    x = 27,175,345.76/5,306.85
  6. Step 6: Final answer
    x = 5,120.81

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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.