Home / 3,616.74-5,422.38-1,275.72

Finding the Fourth Proportional to 3,616.74, 5,422.38 and 1,275.72

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Solution

The fourth proportional to 3,616.74, 5,422.38 and 1,275.72 is: 1,912.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,616.74 : 5,422.38 = 1,275.72 : x
  2. Step 2: Convert to fraction form
    3,616.74/5,422.38 = 1,275.72/x
  3. Step 3: Cross multiply
    3,616.74x = 5,422.38 × 1,275.72
  4. Step 4: Simplify right side
    3,616.74x = 6,917,438.61
  5. Step 5: Solve for x
    x = 6,917,438.61/3,616.74
  6. Step 6: Final answer
    x = 1,912.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.