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Finding the Fourth Proportional to 2,592.77, 3,888.54 and 743.36

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Solution

The fourth proportional to 2,592.77, 3,888.54 and 743.36 is: 1,114.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,592.77 : 3,888.54 = 743.36 : x
  2. Step 2: Convert to fraction form
    2,592.77/3,888.54 = 743.36/x
  3. Step 3: Cross multiply
    2,592.77x = 3,888.54 × 743.36
  4. Step 4: Simplify right side
    2,592.77x = 2,890,565.65
  5. Step 5: Solve for x
    x = 2,890,565.65/2,592.77
  6. Step 6: Final answer
    x = 1,114.86

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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.