Home / 5,488.43-7,574.36-3,131.33

Finding the Fourth Proportional to 5,488.43, 7,574.36 and 3,131.33

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Solution

The fourth proportional to 5,488.43, 7,574.36 and 3,131.33 is: 4,321.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,488.43 : 7,574.36 = 3,131.33 : x
  2. Step 2: Convert to fraction form
    5,488.43/7,574.36 = 3,131.33/x
  3. Step 3: Cross multiply
    5,488.43x = 7,574.36 × 3,131.33
  4. Step 4: Simplify right side
    5,488.43x = 23,717,820.70
  5. Step 5: Solve for x
    x = 23,717,820.70/5,488.43
  6. Step 6: Final answer
    x = 4,321.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.