Home / 2,382.35-3,286.17-1,387.46

Finding the Fourth Proportional to 2,382.35, 3,286.17 and 1,387.46

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Solution

The fourth proportional to 2,382.35, 3,286.17 and 1,387.46 is: 1,913.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,382.35 : 3,286.17 = 1,387.46 : x
  2. Step 2: Convert to fraction form
    2,382.35/3,286.17 = 1,387.46/x
  3. Step 3: Cross multiply
    2,382.35x = 3,286.17 × 1,387.46
  4. Step 4: Simplify right side
    2,382.35x = 4,559,437.64
  5. Step 5: Solve for x
    x = 4,559,437.64/2,382.35
  6. Step 6: Final answer
    x = 1,913.84

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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.