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Finding the Fourth Proportional to 2,654.76, 3,982.17 and 923.28

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Solution

The fourth proportional to 2,654.76, 3,982.17 and 923.28 is: 1,384.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,654.76 : 3,982.17 = 923.28 : x
  2. Step 2: Convert to fraction form
    2,654.76/3,982.17 = 923.28/x
  3. Step 3: Cross multiply
    2,654.76x = 3,982.17 × 923.28
  4. Step 4: Simplify right side
    2,654.76x = 3,676,657.92
  5. Step 5: Solve for x
    x = 3,676,657.92/2,654.76
  6. Step 6: Final answer
    x = 1,384.93

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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.