Home / 1,422.44-1,961.38-1,166.15

Finding the Fourth Proportional to 1,422.44, 1,961.38 and 1,166.15

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Solution

The fourth proportional to 1,422.44, 1,961.38 and 1,166.15 is: 1,607.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422.44 : 1,961.38 = 1,166.15 : x
  2. Step 2: Convert to fraction form
    1,422.44/1,961.38 = 1,166.15/x
  3. Step 3: Cross multiply
    1,422.44x = 1,961.38 × 1,166.15
  4. Step 4: Simplify right side
    1,422.44x = 2,287,253.70
  5. Step 5: Solve for x
    x = 2,287,253.70/1,422.44
  6. Step 6: Final answer
    x = 1,607.98

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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.