Home / 5,424.30-8,132.40-2,961.90

Finding the Fourth Proportional to 5,424.30, 8,132.40 and 2,961.90

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Solution

The fourth proportional to 5,424.30, 8,132.40 and 2,961.90 is: 4,440.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,424.30 : 8,132.40 = 2,961.90 : x
  2. Step 2: Convert to fraction form
    5,424.30/8,132.40 = 2,961.90/x
  3. Step 3: Cross multiply
    5,424.30x = 8,132.40 × 2,961.90
  4. Step 4: Simplify right side
    5,424.30x = 24,087,355.56
  5. Step 5: Solve for x
    x = 24,087,355.56/5,424.30
  6. Step 6: Final answer
    x = 4,440.64

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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.