Home / 3,418.20-5,129.84-1,471.76

Finding the Fourth Proportional to 3,418.20, 5,129.84 and 1,471.76

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Solution

The fourth proportional to 3,418.20, 5,129.84 and 1,471.76 is: 2,208.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.20 : 5,129.84 = 1,471.76 : x
  2. Step 2: Convert to fraction form
    3,418.20/5,129.84 = 1,471.76/x
  3. Step 3: Cross multiply
    3,418.20x = 5,129.84 × 1,471.76
  4. Step 4: Simplify right side
    3,418.20x = 7,549,893.32
  5. Step 5: Solve for x
    x = 7,549,893.32/3,418.20
  6. Step 6: Final answer
    x = 2,208.73

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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.