Home / 2,600.11-3,900.30-1,301.14

Finding the Fourth Proportional to 2,600.11, 3,900.30 and 1,301.14

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Solution

The fourth proportional to 2,600.11, 3,900.30 and 1,301.14 is: 1,951.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,600.11 : 3,900.30 = 1,301.14 : x
  2. Step 2: Convert to fraction form
    2,600.11/3,900.30 = 1,301.14/x
  3. Step 3: Cross multiply
    2,600.11x = 3,900.30 × 1,301.14
  4. Step 4: Simplify right side
    2,600.11x = 5,074,836.34
  5. Step 5: Solve for x
    x = 5,074,836.34/2,600.11
  6. Step 6: Final answer
    x = 1,951.78

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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.