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Finding the Fourth Proportional to 3,418.66, 4,712.92 and 3,371.86

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Solution

The fourth proportional to 3,418.66, 4,712.92 and 3,371.86 is: 4,648.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.66 : 4,712.92 = 3,371.86 : x
  2. Step 2: Convert to fraction form
    3,418.66/4,712.92 = 3,371.86/x
  3. Step 3: Cross multiply
    3,418.66x = 4,712.92 × 3,371.86
  4. Step 4: Simplify right side
    3,418.66x = 15,891,306.43
  5. Step 5: Solve for x
    x = 15,891,306.43/3,418.66
  6. Step 6: Final answer
    x = 4,648.40

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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.