Home / 5,281.04-7,287.72-3,042.78

Finding the Fourth Proportional to 5,281.04, 7,287.72 and 3,042.78

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Solution

The fourth proportional to 5,281.04, 7,287.72 and 3,042.78 is: 4,198.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,281.04 : 7,287.72 = 3,042.78 : x
  2. Step 2: Convert to fraction form
    5,281.04/7,287.72 = 3,042.78/x
  3. Step 3: Cross multiply
    5,281.04x = 7,287.72 × 3,042.78
  4. Step 4: Simplify right side
    5,281.04x = 22,174,917.29
  5. Step 5: Solve for x
    x = 22,174,917.29/5,281.04
  6. Step 6: Final answer
    x = 4,198.97

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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.