Home / 5,338.20-7,367.14-3,100.78

Finding the Fourth Proportional to 5,338.20, 7,367.14 and 3,100.78

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Solution

The fourth proportional to 5,338.20, 7,367.14 and 3,100.78 is: 4,279.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,338.20 : 7,367.14 = 3,100.78 : x
  2. Step 2: Convert to fraction form
    5,338.20/7,367.14 = 3,100.78/x
  3. Step 3: Cross multiply
    5,338.20x = 7,367.14 × 3,100.78
  4. Step 4: Simplify right side
    5,338.20x = 22,843,828.03
  5. Step 5: Solve for x
    x = 22,843,828.03/5,338.20
  6. Step 6: Final answer
    x = 4,279.31

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1.5x scale

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.