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Finding the Fourth Proportional to 2,863.06, 4,294.01 and 782.89

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Solution

The fourth proportional to 2,863.06, 4,294.01 and 782.89 is: 1,174.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,863.06 : 4,294.01 = 782.89 : x
  2. Step 2: Convert to fraction form
    2,863.06/4,294.01 = 782.89/x
  3. Step 3: Cross multiply
    2,863.06x = 4,294.01 × 782.89
  4. Step 4: Simplify right side
    2,863.06x = 3,361,737.49
  5. Step 5: Solve for x
    x = 3,361,737.49/2,863.06
  6. Step 6: Final answer
    x = 1,174.18

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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.