Home / 2,310.92-3,189.12-1,263.06

Finding the Fourth Proportional to 2,310.92, 3,189.12 and 1,263.06

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Solution

The fourth proportional to 2,310.92, 3,189.12 and 1,263.06 is: 1,743.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,310.92 : 3,189.12 = 1,263.06 : x
  2. Step 2: Convert to fraction form
    2,310.92/3,189.12 = 1,263.06/x
  3. Step 3: Cross multiply
    2,310.92x = 3,189.12 × 1,263.06
  4. Step 4: Simplify right side
    2,310.92x = 4,028,049.91
  5. Step 5: Solve for x
    x = 4,028,049.91/2,310.92
  6. Step 6: Final answer
    x = 1,743.05

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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.