Home / 7,073.48-9,761.30-3,929.60

Finding the Fourth Proportional to 7,073.48, 9,761.30 and 3,929.60

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Solution

The fourth proportional to 7,073.48, 9,761.30 and 3,929.60 is: 5,422.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,073.48 : 9,761.30 = 3,929.60 : x
  2. Step 2: Convert to fraction form
    7,073.48/9,761.30 = 3,929.60/x
  3. Step 3: Cross multiply
    7,073.48x = 9,761.30 × 3,929.60
  4. Step 4: Simplify right side
    7,073.48x = 38,358,004.48
  5. Step 5: Solve for x
    x = 38,358,004.48/7,073.48
  6. Step 6: Final answer
    x = 5,422.79

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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.