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Finding the Fourth Proportional to 2,677.91, 4,016.64 and 922.91

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Solution

The fourth proportional to 2,677.91, 4,016.64 and 922.91 is: 1,384.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,677.91 : 4,016.64 = 922.91 : x
  2. Step 2: Convert to fraction form
    2,677.91/4,016.64 = 922.91/x
  3. Step 3: Cross multiply
    2,677.91x = 4,016.64 × 922.91
  4. Step 4: Simplify right side
    2,677.91x = 3,706,997.22
  5. Step 5: Solve for x
    x = 3,706,997.22/2,677.91
  6. Step 6: Final answer
    x = 1,384.29

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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.