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Finding the Fourth Proportional to 2,925.79, 4,017.17 and 2,849.65

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Solution

The fourth proportional to 2,925.79, 4,017.17 and 2,849.65 is: 3,912.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,925.79 : 4,017.17 = 2,849.65 : x
  2. Step 2: Convert to fraction form
    2,925.79/4,017.17 = 2,849.65/x
  3. Step 3: Cross multiply
    2,925.79x = 4,017.17 × 2,849.65
  4. Step 4: Simplify right side
    2,925.79x = 11,447,517.56
  5. Step 5: Solve for x
    x = 11,447,517.56/2,925.79
  6. Step 6: Final answer
    x = 3,912.63

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.