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Finding the Fourth Proportional to 4,787.04, 7,178.56 and 1,499.28

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Solution

The fourth proportional to 4,787.04, 7,178.56 and 1,499.28 is: 2,248.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,787.04 : 7,178.56 = 1,499.28 : x
  2. Step 2: Convert to fraction form
    4,787.04/7,178.56 = 1,499.28/x
  3. Step 3: Cross multiply
    4,787.04x = 7,178.56 × 1,499.28
  4. Step 4: Simplify right side
    4,787.04x = 10,762,671.44
  5. Step 5: Solve for x
    x = 10,762,671.44/4,787.04
  6. Step 6: Final answer
    x = 2,248.29

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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.