Home / 1,552.11-2,142.08-922.78

Finding the Fourth Proportional to 1,552.11, 2,142.08 and 922.78

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Solution

The fourth proportional to 1,552.11, 2,142.08 and 922.78 is: 1,273.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,552.11 : 2,142.08 = 922.78 : x
  2. Step 2: Convert to fraction form
    1,552.11/2,142.08 = 922.78/x
  3. Step 3: Cross multiply
    1,552.11x = 2,142.08 × 922.78
  4. Step 4: Simplify right side
    1,552.11x = 1,976,668.58
  5. Step 5: Solve for x
    x = 1,976,668.58/1,552.11
  6. Step 6: Final answer
    x = 1,273.54

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1.5x scale

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.