Home / 2,749.12-4,121.76-1,360.76

Finding the Fourth Proportional to 2,749.12, 4,121.76 and 1,360.76

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Solution

The fourth proportional to 2,749.12, 4,121.76 and 1,360.76 is: 2,040.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,749.12 : 4,121.76 = 1,360.76 : x
  2. Step 2: Convert to fraction form
    2,749.12/4,121.76 = 1,360.76/x
  3. Step 3: Cross multiply
    2,749.12x = 4,121.76 × 1,360.76
  4. Step 4: Simplify right side
    2,749.12x = 5,608,726.14
  5. Step 5: Solve for x
    x = 5,608,726.14/2,749.12
  6. Step 6: Final answer
    x = 2,040.19

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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.