Home / 7,073.07-9,761.25-3,929.23

Finding the Fourth Proportional to 7,073.07, 9,761.25 and 3,929.23

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Solution

The fourth proportional to 7,073.07, 9,761.25 and 3,929.23 is: 5,422.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,073.07 : 9,761.25 = 3,929.23 : x
  2. Step 2: Convert to fraction form
    7,073.07/9,761.25 = 3,929.23/x
  3. Step 3: Cross multiply
    7,073.07x = 9,761.25 × 3,929.23
  4. Step 4: Simplify right side
    7,073.07x = 38,354,196.34
  5. Step 5: Solve for x
    x = 38,354,196.34/7,073.07
  6. Step 6: Final answer
    x = 5,422.57

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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.