Home / 1,516.25-2,092.80-927.29

Finding the Fourth Proportional to 1,516.25, 2,092.80 and 927.29

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Solution

The fourth proportional to 1,516.25, 2,092.80 and 927.29 is: 1,279.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,516.25 : 2,092.80 = 927.29 : x
  2. Step 2: Convert to fraction form
    1,516.25/2,092.80 = 927.29/x
  3. Step 3: Cross multiply
    1,516.25x = 2,092.80 × 927.29
  4. Step 4: Simplify right side
    1,516.25x = 1,940,622.05
  5. Step 5: Solve for x
    x = 1,940,622.05/1,516.25
  6. Step 6: Final answer
    x = 1,279.88

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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.