Home / 3,493.10-5,239.28-1,414.20

Finding the Fourth Proportional to 3,493.10, 5,239.28 and 1,414.20

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Solution

The fourth proportional to 3,493.10, 5,239.28 and 1,414.20 is: 2,121.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,493.10 : 5,239.28 = 1,414.20 : x
  2. Step 2: Convert to fraction form
    3,493.10/5,239.28 = 1,414.20/x
  3. Step 3: Cross multiply
    3,493.10x = 5,239.28 × 1,414.20
  4. Step 4: Simplify right side
    3,493.10x = 7,409,389.78
  5. Step 5: Solve for x
    x = 7,409,389.78/3,493.10
  6. Step 6: Final answer
    x = 2,121.15

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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.