Home / 5,426.57-8,139.86-2,503.28

Finding the Fourth Proportional to 5,426.57, 8,139.86 and 2,503.28

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Solution

The fourth proportional to 5,426.57, 8,139.86 and 2,503.28 is: 3,754.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,426.57 : 8,139.86 = 2,503.28 : x
  2. Step 2: Convert to fraction form
    5,426.57/8,139.86 = 2,503.28/x
  3. Step 3: Cross multiply
    5,426.57x = 8,139.86 × 2,503.28
  4. Step 4: Simplify right side
    5,426.57x = 20,376,348.74
  5. Step 5: Solve for x
    x = 20,376,348.74/5,426.57
  6. Step 6: Final answer
    x = 3,754.92

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Why These Related Problems?

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