Home / 5,712.17-7,880.48-3,722

Finding the Fourth Proportional to 5,712.17, 7,880.48 and 3,722

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Solution

The fourth proportional to 5,712.17, 7,880.48 and 3,722 is: 5,134.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,712.17 : 7,880.48 = 3,722 : x
  2. Step 2: Convert to fraction form
    5,712.17/7,880.48 = 3,722/x
  3. Step 3: Cross multiply
    5,712.17x = 7,880.48 × 3,722
  4. Step 4: Simplify right side
    5,712.17x = 29,331,127.95
  5. Step 5: Solve for x
    x = 29,331,127.95/5,712.17
  6. Step 6: Final answer
    x = 5,134.85

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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.