Home / 3,921.27-5,880.19-1,147.87

Finding the Fourth Proportional to 3,921.27, 5,880.19 and 1,147.87

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Solution

The fourth proportional to 3,921.27, 5,880.19 and 1,147.87 is: 1,721.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921.27 : 5,880.19 = 1,147.87 : x
  2. Step 2: Convert to fraction form
    3,921.27/5,880.19 = 1,147.87/x
  3. Step 3: Cross multiply
    3,921.27x = 5,880.19 × 1,147.87
  4. Step 4: Simplify right side
    3,921.27x = 6,749,693.70
  5. Step 5: Solve for x
    x = 6,749,693.70/3,921.27
  6. Step 6: Final answer
    x = 1,721.30

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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.