Home / 2,449.40-3,376.24-1,917.38

Finding the Fourth Proportional to 2,449.40, 3,376.24 and 1,917.38

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Solution

The fourth proportional to 2,449.40, 3,376.24 and 1,917.38 is: 2,642.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,449.40 : 3,376.24 = 1,917.38 : x
  2. Step 2: Convert to fraction form
    2,449.40/3,376.24 = 1,917.38/x
  3. Step 3: Cross multiply
    2,449.40x = 3,376.24 × 1,917.38
  4. Step 4: Simplify right side
    2,449.40x = 6,473,535.05
  5. Step 5: Solve for x
    x = 6,473,535.05/2,449.40
  6. Step 6: Final answer
    x = 2,642.91

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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.