Home / 5,426.40-8,139.60-5,061.90

Finding the Fourth Proportional to 5,426.40, 8,139.60 and 5,061.90

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Solution

The fourth proportional to 5,426.40, 8,139.60 and 5,061.90 is: 7,592.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,426.40 : 8,139.60 = 5,061.90 : x
  2. Step 2: Convert to fraction form
    5,426.40/8,139.60 = 5,061.90/x
  3. Step 3: Cross multiply
    5,426.40x = 8,139.60 × 5,061.90
  4. Step 4: Simplify right side
    5,426.40x = 41,201,841.24
  5. Step 5: Solve for x
    x = 41,201,841.24/5,426.40
  6. Step 6: Final answer
    x = 7,592.85

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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.