Home / 1,119.52-1,680.24-892.96

Finding the Fourth Proportional to 1,119.52, 1,680.24 and 892.96

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Solution

The fourth proportional to 1,119.52, 1,680.24 and 892.96 is: 1,340.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119.52 : 1,680.24 = 892.96 : x
  2. Step 2: Convert to fraction form
    1,119.52/1,680.24 = 892.96/x
  3. Step 3: Cross multiply
    1,119.52x = 1,680.24 × 892.96
  4. Step 4: Simplify right side
    1,119.52x = 1,500,387.11
  5. Step 5: Solve for x
    x = 1,500,387.11/1,119.52
  6. Step 6: Final answer
    x = 1,340.21

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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.