Home / 2,382.46-3,287.68-1,387.54

Finding the Fourth Proportional to 2,382.46, 3,287.68 and 1,387.54

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Solution

The fourth proportional to 2,382.46, 3,287.68 and 1,387.54 is: 1,914.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,382.46 : 3,287.68 = 1,387.54 : x
  2. Step 2: Convert to fraction form
    2,382.46/3,287.68 = 1,387.54/x
  3. Step 3: Cross multiply
    2,382.46x = 3,287.68 × 1,387.54
  4. Step 4: Simplify right side
    2,382.46x = 4,561,787.51
  5. Step 5: Solve for x
    x = 4,561,787.51/2,382.46
  6. Step 6: Final answer
    x = 1,914.74

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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.