Home / 5,079.31-7,617.14-2,156.63

Finding the Fourth Proportional to 5,079.31, 7,617.14 and 2,156.63

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Solution

The fourth proportional to 5,079.31, 7,617.14 and 2,156.63 is: 3,234.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,079.31 : 7,617.14 = 2,156.63 : x
  2. Step 2: Convert to fraction form
    5,079.31/7,617.14 = 2,156.63/x
  3. Step 3: Cross multiply
    5,079.31x = 7,617.14 × 2,156.63
  4. Step 4: Simplify right side
    5,079.31x = 16,427,311.86
  5. Step 5: Solve for x
    x = 16,427,311.86/5,079.31
  6. Step 6: Final answer
    x = 3,234.16

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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.