Home / 4,620.80-6,382.17-3,126.12

Finding the Fourth Proportional to 4,620.80, 6,382.17 and 3,126.12

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Solution

The fourth proportional to 4,620.80, 6,382.17 and 3,126.12 is: 4,317.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,620.80 : 6,382.17 = 3,126.12 : x
  2. Step 2: Convert to fraction form
    4,620.80/6,382.17 = 3,126.12/x
  3. Step 3: Cross multiply
    4,620.80x = 6,382.17 × 3,126.12
  4. Step 4: Simplify right side
    4,620.80x = 19,951,414.50
  5. Step 5: Solve for x
    x = 19,951,414.50/4,620.80
  6. Step 6: Final answer
    x = 4,317.74

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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.