Home / 6,643.20-9,955.76-3,132.66

Finding the Fourth Proportional to 6,643.20, 9,955.76 and 3,132.66

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Solution

The fourth proportional to 6,643.20, 9,955.76 and 3,132.66 is: 4,694.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,643.20 : 9,955.76 = 3,132.66 : x
  2. Step 2: Convert to fraction form
    6,643.20/9,955.76 = 3,132.66/x
  3. Step 3: Cross multiply
    6,643.20x = 9,955.76 × 3,132.66
  4. Step 4: Simplify right side
    6,643.20x = 31,187,995.46
  5. Step 5: Solve for x
    x = 31,187,995.46/6,643.20
  6. Step 6: Final answer
    x = 4,694.72

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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.