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Finding the Fourth Proportional to 4,787.82, 6,607.79 and 2,691.95

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Solution

The fourth proportional to 4,787.82, 6,607.79 and 2,691.95 is: 3,715.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,787.82 : 6,607.79 = 2,691.95 : x
  2. Step 2: Convert to fraction form
    4,787.82/6,607.79 = 2,691.95/x
  3. Step 3: Cross multiply
    4,787.82x = 6,607.79 × 2,691.95
  4. Step 4: Simplify right side
    4,787.82x = 17,787,840.29
  5. Step 5: Solve for x
    x = 17,787,840.29/4,787.82
  6. Step 6: Final answer
    x = 3,715.23

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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.