Home / 2,454.17-3,387.23-1,391.95

Finding the Fourth Proportional to 2,454.17, 3,387.23 and 1,391.95

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Solution

The fourth proportional to 2,454.17, 3,387.23 and 1,391.95 is: 1,921.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,454.17 : 3,387.23 = 1,391.95 : x
  2. Step 2: Convert to fraction form
    2,454.17/3,387.23 = 1,391.95/x
  3. Step 3: Cross multiply
    2,454.17x = 3,387.23 × 1,391.95
  4. Step 4: Simplify right side
    2,454.17x = 4,714,849.81
  5. Step 5: Solve for x
    x = 4,714,849.81/2,454.17
  6. Step 6: Final answer
    x = 1,921.16

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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.