Home / 5,423.73-8,120.10-5,079.28

Finding the Fourth Proportional to 5,423.73, 8,120.10 and 5,079.28

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Solution

The fourth proportional to 5,423.73, 8,120.10 and 5,079.28 is: 7,604.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,423.73 : 8,120.10 = 5,079.28 : x
  2. Step 2: Convert to fraction form
    5,423.73/8,120.10 = 5,079.28/x
  3. Step 3: Cross multiply
    5,423.73x = 8,120.10 × 5,079.28
  4. Step 4: Simplify right side
    5,423.73x = 41,244,261.53
  5. Step 5: Solve for x
    x = 41,244,261.53/5,423.73
  6. Step 6: Final answer
    x = 7,604.41

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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.