Home / 3,945.16-5,917.88-1,171.76

Finding the Fourth Proportional to 3,945.16, 5,917.88 and 1,171.76

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Solution

The fourth proportional to 3,945.16, 5,917.88 and 1,171.76 is: 1,757.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945.16 : 5,917.88 = 1,171.76 : x
  2. Step 2: Convert to fraction form
    3,945.16/5,917.88 = 1,171.76/x
  3. Step 3: Cross multiply
    3,945.16x = 5,917.88 × 1,171.76
  4. Step 4: Simplify right side
    3,945.16x = 6,934,335.07
  5. Step 5: Solve for x
    x = 6,934,335.07/3,945.16
  6. Step 6: Final answer
    x = 1,757.68

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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.