Home / 6,639.47-9,963.30-2,743.88

Finding the Fourth Proportional to 6,639.47, 9,963.30 and 2,743.88

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Solution

The fourth proportional to 6,639.47, 9,963.30 and 2,743.88 is: 4,117.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,639.47 : 9,963.30 = 2,743.88 : x
  2. Step 2: Convert to fraction form
    6,639.47/9,963.30 = 2,743.88/x
  3. Step 3: Cross multiply
    6,639.47x = 9,963.30 × 2,743.88
  4. Step 4: Simplify right side
    6,639.47x = 27,338,060.08
  5. Step 5: Solve for x
    x = 27,338,060.08/6,639.47
  6. Step 6: Final answer
    x = 4,117.51

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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.