Home / 3,213.31-4,432.17-2,418.70

Finding the Fourth Proportional to 3,213.31, 4,432.17 and 2,418.70

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Solution

The fourth proportional to 3,213.31, 4,432.17 and 2,418.70 is: 3,336.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,213.31 : 4,432.17 = 2,418.70 : x
  2. Step 2: Convert to fraction form
    3,213.31/4,432.17 = 2,418.70/x
  3. Step 3: Cross multiply
    3,213.31x = 4,432.17 × 2,418.70
  4. Step 4: Simplify right side
    3,213.31x = 10,720,089.58
  5. Step 5: Solve for x
    x = 10,720,089.58/3,213.31
  6. Step 6: Final answer
    x = 3,336.15

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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.