Home / 6,542.28-9,812.45-2,159.78

Finding the Fourth Proportional to 6,542.28, 9,812.45 and 2,159.78

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Solution

The fourth proportional to 6,542.28, 9,812.45 and 2,159.78 is: 3,239.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,542.28 : 9,812.45 = 2,159.78 : x
  2. Step 2: Convert to fraction form
    6,542.28/9,812.45 = 2,159.78/x
  3. Step 3: Cross multiply
    6,542.28x = 9,812.45 × 2,159.78
  4. Step 4: Simplify right side
    6,542.28x = 21,192,689.60
  5. Step 5: Solve for x
    x = 21,192,689.60/6,542.28
  6. Step 6: Final answer
    x = 3,239.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.