Home / 5,517.14-7,615.50-3,161.66

Finding the Fourth Proportional to 5,517.14, 7,615.50 and 3,161.66

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Solution

The fourth proportional to 5,517.14, 7,615.50 and 3,161.66 is: 4,364.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,517.14 : 7,615.50 = 3,161.66 : x
  2. Step 2: Convert to fraction form
    5,517.14/7,615.50 = 3,161.66/x
  3. Step 3: Cross multiply
    5,517.14x = 7,615.50 × 3,161.66
  4. Step 4: Simplify right side
    5,517.14x = 24,077,621.73
  5. Step 5: Solve for x
    x = 24,077,621.73/5,517.14
  6. Step 6: Final answer
    x = 4,364.15

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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.