Home / 3,407.28-5,110.56-1,215.96

Finding the Fourth Proportional to 3,407.28, 5,110.56 and 1,215.96

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Solution

The fourth proportional to 3,407.28, 5,110.56 and 1,215.96 is: 1,823.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,407.28 : 5,110.56 = 1,215.96 : x
  2. Step 2: Convert to fraction form
    3,407.28/5,110.56 = 1,215.96/x
  3. Step 3: Cross multiply
    3,407.28x = 5,110.56 × 1,215.96
  4. Step 4: Simplify right side
    3,407.28x = 6,214,236.54
  5. Step 5: Solve for x
    x = 6,214,236.54/3,407.28
  6. Step 6: Final answer
    x = 1,823.81

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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.