Home / 3,741.20-5,610.76-1,109.28

Finding the Fourth Proportional to 3,741.20, 5,610.76 and 1,109.28

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Solution

The fourth proportional to 3,741.20, 5,610.76 and 1,109.28 is: 1,663.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,741.20 : 5,610.76 = 1,109.28 : x
  2. Step 2: Convert to fraction form
    3,741.20/5,610.76 = 1,109.28/x
  3. Step 3: Cross multiply
    3,741.20x = 5,610.76 × 1,109.28
  4. Step 4: Simplify right side
    3,741.20x = 6,223,903.85
  5. Step 5: Solve for x
    x = 6,223,903.85/3,741.20
  6. Step 6: Final answer
    x = 1,663.61

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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.