Home / 5,431.76-7,496.20-3,073.90

Finding the Fourth Proportional to 5,431.76, 7,496.20 and 3,073.90

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Solution

The fourth proportional to 5,431.76, 7,496.20 and 3,073.90 is: 4,242.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,431.76 : 7,496.20 = 3,073.90 : x
  2. Step 2: Convert to fraction form
    5,431.76/7,496.20 = 3,073.90/x
  3. Step 3: Cross multiply
    5,431.76x = 7,496.20 × 3,073.90
  4. Step 4: Simplify right side
    5,431.76x = 23,042,569.18
  5. Step 5: Solve for x
    x = 23,042,569.18/5,431.76
  6. Step 6: Final answer
    x = 4,242.19

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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.