Home / 5,549.12-7,657.82-3,031.28

Finding the Fourth Proportional to 5,549.12, 7,657.82 and 3,031.28

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Solution

The fourth proportional to 5,549.12, 7,657.82 and 3,031.28 is: 4,183.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,549.12 : 7,657.82 = 3,031.28 : x
  2. Step 2: Convert to fraction form
    5,549.12/7,657.82 = 3,031.28/x
  3. Step 3: Cross multiply
    5,549.12x = 7,657.82 × 3,031.28
  4. Step 4: Simplify right side
    5,549.12x = 23,212,996.61
  5. Step 5: Solve for x
    x = 23,212,996.61/5,549.12
  6. Step 6: Final answer
    x = 4,183.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.