Home / 2,315.20-3,194.96-1,252.97

Finding the Fourth Proportional to 2,315.20, 3,194.96 and 1,252.97

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Solution

The fourth proportional to 2,315.20, 3,194.96 and 1,252.97 is: 1,729.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,315.20 : 3,194.96 = 1,252.97 : x
  2. Step 2: Convert to fraction form
    2,315.20/3,194.96 = 1,252.97/x
  3. Step 3: Cross multiply
    2,315.20x = 3,194.96 × 1,252.97
  4. Step 4: Simplify right side
    2,315.20x = 4,003,166.79
  5. Step 5: Solve for x
    x = 4,003,166.79/2,315.20
  6. Step 6: Final answer
    x = 1,729.08

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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.