Home / 2,378.27-3,281.46-1,382.95

Finding the Fourth Proportional to 2,378.27, 3,281.46 and 1,382.95

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Solution

The fourth proportional to 2,378.27, 3,281.46 and 1,382.95 is: 1,908.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,378.27 : 3,281.46 = 1,382.95 : x
  2. Step 2: Convert to fraction form
    2,378.27/3,281.46 = 1,382.95/x
  3. Step 3: Cross multiply
    2,378.27x = 3,281.46 × 1,382.95
  4. Step 4: Simplify right side
    2,378.27x = 4,538,094.02
  5. Step 5: Solve for x
    x = 4,538,094.02/2,378.27
  6. Step 6: Final answer
    x = 1,908.15

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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.