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Finding the Fourth Proportional to 5,712.55, 8,540.65 and 4,844.72

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Solution

The fourth proportional to 5,712.55, 8,540.65 and 4,844.72 is: 7,243.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,712.55 : 8,540.65 = 4,844.72 : x
  2. Step 2: Convert to fraction form
    5,712.55/8,540.65 = 4,844.72/x
  3. Step 3: Cross multiply
    5,712.55x = 8,540.65 × 4,844.72
  4. Step 4: Simplify right side
    5,712.55x = 41,377,045.76
  5. Step 5: Solve for x
    x = 41,377,045.76/5,712.55
  6. Step 6: Final answer
    x = 7,243.19

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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.