Home / 2,454.38-3,386.30-1,391.97

Finding the Fourth Proportional to 2,454.38, 3,386.30 and 1,391.97

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Solution

The fourth proportional to 2,454.38, 3,386.30 and 1,391.97 is: 1,920.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,454.38 : 3,386.30 = 1,391.97 : x
  2. Step 2: Convert to fraction form
    2,454.38/3,386.30 = 1,391.97/x
  3. Step 3: Cross multiply
    2,454.38x = 3,386.30 × 1,391.97
  4. Step 4: Simplify right side
    2,454.38x = 4,713,621.05
  5. Step 5: Solve for x
    x = 4,713,621.05/2,454.38
  6. Step 6: Final answer
    x = 1,920.50

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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.