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Finding the Fourth Proportional to 6,726.97, 9,281.86 and 3,931.93

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Solution

The fourth proportional to 6,726.97, 9,281.86 and 3,931.93 is: 5,425.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,726.97 : 9,281.86 = 3,931.93 : x
  2. Step 2: Convert to fraction form
    6,726.97/9,281.86 = 3,931.93/x
  3. Step 3: Cross multiply
    6,726.97x = 9,281.86 × 3,931.93
  4. Step 4: Simplify right side
    6,726.97x = 36,495,623.79
  5. Step 5: Solve for x
    x = 36,495,623.79/6,726.97
  6. Step 6: Final answer
    x = 5,425.27

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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.