Home / 2,260.78-3,390.66-1,149.07

Finding the Fourth Proportional to 2,260.78, 3,390.66 and 1,149.07

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Solution

The fourth proportional to 2,260.78, 3,390.66 and 1,149.07 is: 1,723.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,260.78 : 3,390.66 = 1,149.07 : x
  2. Step 2: Convert to fraction form
    2,260.78/3,390.66 = 1,149.07/x
  3. Step 3: Cross multiply
    2,260.78x = 3,390.66 × 1,149.07
  4. Step 4: Simplify right side
    2,260.78x = 3,896,105.69
  5. Step 5: Solve for x
    x = 3,896,105.69/2,260.78
  6. Step 6: Final answer
    x = 1,723.35

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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.