Home / 5,281.13-7,287.15-3,042.57

Finding the Fourth Proportional to 5,281.13, 7,287.15 and 3,042.57

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Solution

The fourth proportional to 5,281.13, 7,287.15 and 3,042.57 is: 4,198.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,281.13 : 7,287.15 = 3,042.57 : x
  2. Step 2: Convert to fraction form
    5,281.13/7,287.15 = 3,042.57/x
  3. Step 3: Cross multiply
    5,281.13x = 7,287.15 × 3,042.57
  4. Step 4: Simplify right side
    5,281.13x = 22,171,663.98
  5. Step 5: Solve for x
    x = 22,171,663.98/5,281.13
  6. Step 6: Final answer
    x = 4,198.28

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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.