Home / 5,418.55-8,125.80-3,770.20

Finding the Fourth Proportional to 5,418.55, 8,125.80 and 3,770.20

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Solution

The fourth proportional to 5,418.55, 8,125.80 and 3,770.20 is: 5,653.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.55 : 8,125.80 = 3,770.20 : x
  2. Step 2: Convert to fraction form
    5,418.55/8,125.80 = 3,770.20/x
  3. Step 3: Cross multiply
    5,418.55x = 8,125.80 × 3,770.20
  4. Step 4: Simplify right side
    5,418.55x = 30,635,891.16
  5. Step 5: Solve for x
    x = 30,635,891.16/5,418.55
  6. Step 6: Final answer
    x = 5,653.89

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1.5x scale

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.