Home / 2,142.16-3,211.32-844.52

Finding the Fourth Proportional to 2,142.16, 3,211.32 and 844.52

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Solution

The fourth proportional to 2,142.16, 3,211.32 and 844.52 is: 1,266.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,142.16 : 3,211.32 = 844.52 : x
  2. Step 2: Convert to fraction form
    2,142.16/3,211.32 = 844.52/x
  3. Step 3: Cross multiply
    2,142.16x = 3,211.32 × 844.52
  4. Step 4: Simplify right side
    2,142.16x = 2,712,023.97
  5. Step 5: Solve for x
    x = 2,712,023.97/2,142.16
  6. Step 6: Final answer
    x = 1,266.02

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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.