Home / 1,179.40-1,767.42-922.60

Finding the Fourth Proportional to 1,179.40, 1,767.42 and 922.60

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Solution

The fourth proportional to 1,179.40, 1,767.42 and 922.60 is: 1,382.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179.40 : 1,767.42 = 922.60 : x
  2. Step 2: Convert to fraction form
    1,179.40/1,767.42 = 922.60/x
  3. Step 3: Cross multiply
    1,179.40x = 1,767.42 × 922.60
  4. Step 4: Simplify right side
    1,179.40x = 1,630,621.69
  5. Step 5: Solve for x
    x = 1,630,621.69/1,179.40
  6. Step 6: Final answer
    x = 1,382.59

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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.