Home / 2,454.87-3,387.74-1,335.81

Finding the Fourth Proportional to 2,454.87, 3,387.74 and 1,335.81

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Solution

The fourth proportional to 2,454.87, 3,387.74 and 1,335.81 is: 1,843.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,454.87 : 3,387.74 = 1,335.81 : x
  2. Step 2: Convert to fraction form
    2,454.87/3,387.74 = 1,335.81/x
  3. Step 3: Cross multiply
    2,454.87x = 3,387.74 × 1,335.81
  4. Step 4: Simplify right side
    2,454.87x = 4,525,376.97
  5. Step 5: Solve for x
    x = 4,525,376.97/2,454.87
  6. Step 6: Final answer
    x = 1,843.43

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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.