Home / 5,168.80-7,135.86-3,577.76

Finding the Fourth Proportional to 5,168.80, 7,135.86 and 3,577.76

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Solution

The fourth proportional to 5,168.80, 7,135.86 and 3,577.76 is: 4,939.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,168.80 : 7,135.86 = 3,577.76 : x
  2. Step 2: Convert to fraction form
    5,168.80/7,135.86 = 3,577.76/x
  3. Step 3: Cross multiply
    5,168.80x = 7,135.86 × 3,577.76
  4. Step 4: Simplify right side
    5,168.80x = 25,530,394.47
  5. Step 5: Solve for x
    x = 25,530,394.47/5,168.80
  6. Step 6: Final answer
    x = 4,939.33

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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.