Home / 6,553.90-9,042.97-3,900.79

Finding the Fourth Proportional to 6,553.90, 9,042.97 and 3,900.79

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Solution

The fourth proportional to 6,553.90, 9,042.97 and 3,900.79 is: 5,382.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,553.90 : 9,042.97 = 3,900.79 : x
  2. Step 2: Convert to fraction form
    6,553.90/9,042.97 = 3,900.79/x
  3. Step 3: Cross multiply
    6,553.90x = 9,042.97 × 3,900.79
  4. Step 4: Simplify right side
    6,553.90x = 35,274,726.95
  5. Step 5: Solve for x
    x = 35,274,726.95/6,553.90
  6. Step 6: Final answer
    x = 5,382.25

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1.5x scale

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.