Home / 2,213.32-3,317.10-1,691.40

Finding the Fourth Proportional to 2,213.32, 3,317.10 and 1,691.40

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Solution

The fourth proportional to 2,213.32, 3,317.10 and 1,691.40 is: 2,534.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,213.32 : 3,317.10 = 1,691.40 : x
  2. Step 2: Convert to fraction form
    2,213.32/3,317.10 = 1,691.40/x
  3. Step 3: Cross multiply
    2,213.32x = 3,317.10 × 1,691.40
  4. Step 4: Simplify right side
    2,213.32x = 5,610,542.94
  5. Step 5: Solve for x
    x = 5,610,542.94/2,213.32
  6. Step 6: Final answer
    x = 2,534.90

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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.