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Finding the Fourth Proportional to 3,098.57, 4,648.12 and 877.41

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Solution

The fourth proportional to 3,098.57, 4,648.12 and 877.41 is: 1,316.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,098.57 : 4,648.12 = 877.41 : x
  2. Step 2: Convert to fraction form
    3,098.57/4,648.12 = 877.41/x
  3. Step 3: Cross multiply
    3,098.57x = 4,648.12 × 877.41
  4. Step 4: Simplify right side
    3,098.57x = 4,078,304.78
  5. Step 5: Solve for x
    x = 4,078,304.78/3,098.57
  6. Step 6: Final answer
    x = 1,316.19

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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.