Home / 2,317.95-3,198.75-1,255.72

Finding the Fourth Proportional to 2,317.95, 3,198.75 and 1,255.72

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Solution

The fourth proportional to 2,317.95, 3,198.75 and 1,255.72 is: 1,732.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,317.95 : 3,198.75 = 1,255.72 : x
  2. Step 2: Convert to fraction form
    2,317.95/3,198.75 = 1,255.72/x
  3. Step 3: Cross multiply
    2,317.95x = 3,198.75 × 1,255.72
  4. Step 4: Simplify right side
    2,317.95x = 4,016,734.35
  5. Step 5: Solve for x
    x = 4,016,734.35/2,317.95
  6. Step 6: Final answer
    x = 1,732.88

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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.