Home / 8,254.28-12,382.38-2,991.78

Finding the Fourth Proportional to 8,254.28, 12,382.38 and 2,991.78

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Solution

The fourth proportional to 8,254.28, 12,382.38 and 2,991.78 is: 4,488.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,254.28 : 12,382.38 = 2,991.78 : x
  2. Step 2: Convert to fraction form
    8,254.28/12,382.38 = 2,991.78/x
  3. Step 3: Cross multiply
    8,254.28x = 12,382.38 × 2,991.78
  4. Step 4: Simplify right side
    8,254.28x = 37,045,356.84
  5. Step 5: Solve for x
    x = 37,045,356.84/8,254.28
  6. Step 6: Final answer
    x = 4,488.02

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.