Home / 5,518.20-7,615.26-3,160.44

Finding the Fourth Proportional to 5,518.20, 7,615.26 and 3,160.44

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Solution

The fourth proportional to 5,518.20, 7,615.26 and 3,160.44 is: 4,361.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.20 : 7,615.26 = 3,160.44 : x
  2. Step 2: Convert to fraction form
    5,518.20/7,615.26 = 3,160.44/x
  3. Step 3: Cross multiply
    5,518.20x = 7,615.26 × 3,160.44
  4. Step 4: Simplify right side
    5,518.20x = 24,067,572.31
  5. Step 5: Solve for x
    x = 24,067,572.31/5,518.20
  6. Step 6: Final answer
    x = 4,361.49

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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.