Home / 1,517.32-2,093.94-928.18

Finding the Fourth Proportional to 1,517.32, 2,093.94 and 928.18

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Solution

The fourth proportional to 1,517.32, 2,093.94 and 928.18 is: 1,280.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,517.32 : 2,093.94 = 928.18 : x
  2. Step 2: Convert to fraction form
    1,517.32/2,093.94 = 928.18/x
  3. Step 3: Cross multiply
    1,517.32x = 2,093.94 × 928.18
  4. Step 4: Simplify right side
    1,517.32x = 1,943,553.23
  5. Step 5: Solve for x
    x = 1,943,553.23/1,517.32
  6. Step 6: Final answer
    x = 1,280.91

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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.