Home / 1,283.20-1,922.56-1,169.28

Finding the Fourth Proportional to 1,283.20, 1,922.56 and 1,169.28

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Solution

The fourth proportional to 1,283.20, 1,922.56 and 1,169.28 is: 1,751.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,283.20 : 1,922.56 = 1,169.28 : x
  2. Step 2: Convert to fraction form
    1,283.20/1,922.56 = 1,169.28/x
  3. Step 3: Cross multiply
    1,283.20x = 1,922.56 × 1,169.28
  4. Step 4: Simplify right side
    1,283.20x = 2,248,010.96
  5. Step 5: Solve for x
    x = 2,248,010.96/1,283.20
  6. Step 6: Final answer
    x = 1,751.88

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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.