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Finding the Fourth Proportional to 2,565.79, 3,849.03 and 1,179.10

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Solution

The fourth proportional to 2,565.79, 3,849.03 and 1,179.10 is: 1,768.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,565.79 : 3,849.03 = 1,179.10 : x
  2. Step 2: Convert to fraction form
    2,565.79/3,849.03 = 1,179.10/x
  3. Step 3: Cross multiply
    2,565.79x = 3,849.03 × 1,179.10
  4. Step 4: Simplify right side
    2,565.79x = 4,538,381.65
  5. Step 5: Solve for x
    x = 4,538,381.65/2,565.79
  6. Step 6: Final answer
    x = 1,768.81

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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.