Home / 3,488.43-5,231.35-1,147.75

Finding the Fourth Proportional to 3,488.43, 5,231.35 and 1,147.75

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Solution

The fourth proportional to 3,488.43, 5,231.35 and 1,147.75 is: 1,721.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,488.43 : 5,231.35 = 1,147.75 : x
  2. Step 2: Convert to fraction form
    3,488.43/5,231.35 = 1,147.75/x
  3. Step 3: Cross multiply
    3,488.43x = 5,231.35 × 1,147.75
  4. Step 4: Simplify right side
    3,488.43x = 6,004,281.96
  5. Step 5: Solve for x
    x = 6,004,281.96/3,488.43
  6. Step 6: Final answer
    x = 1,721.20

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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.