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Finding the Fourth Proportional to 3,877.76, 5,352.52 and 2,480.52

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Solution

The fourth proportional to 3,877.76, 5,352.52 and 2,480.52 is: 3,423.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,877.76 : 5,352.52 = 2,480.52 : x
  2. Step 2: Convert to fraction form
    3,877.76/5,352.52 = 2,480.52/x
  3. Step 3: Cross multiply
    3,877.76x = 5,352.52 × 2,480.52
  4. Step 4: Simplify right side
    3,877.76x = 13,277,032.91
  5. Step 5: Solve for x
    x = 13,277,032.91/3,877.76
  6. Step 6: Final answer
    x = 3,423.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.