Home / 1,891.28-2,612.82-1,614.38

Finding the Fourth Proportional to 1,891.28, 2,612.82 and 1,614.38

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Solution

The fourth proportional to 1,891.28, 2,612.82 and 1,614.38 is: 2,230.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,891.28 : 2,612.82 = 1,614.38 : x
  2. Step 2: Convert to fraction form
    1,891.28/2,612.82 = 1,614.38/x
  3. Step 3: Cross multiply
    1,891.28x = 2,612.82 × 1,614.38
  4. Step 4: Simplify right side
    1,891.28x = 4,218,084.35
  5. Step 5: Solve for x
    x = 4,218,084.35/1,891.28
  6. Step 6: Final answer
    x = 2,230.28

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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.