Home / 3,272.38-4,515.90-1,780.30

Finding the Fourth Proportional to 3,272.38, 4,515.90 and 1,780.30

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Solution

The fourth proportional to 3,272.38, 4,515.90 and 1,780.30 is: 2,456.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,272.38 : 4,515.90 = 1,780.30 : x
  2. Step 2: Convert to fraction form
    3,272.38/4,515.90 = 1,780.30/x
  3. Step 3: Cross multiply
    3,272.38x = 4,515.90 × 1,780.30
  4. Step 4: Simplify right side
    3,272.38x = 8,039,656.77
  5. Step 5: Solve for x
    x = 8,039,656.77/3,272.38
  6. Step 6: Final answer
    x = 2,456.82

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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.