Home / 5,443.20-7,515.38-4,450.55

Finding the Fourth Proportional to 5,443.20, 7,515.38 and 4,450.55

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Solution

The fourth proportional to 5,443.20, 7,515.38 and 4,450.55 is: 6,144.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,443.20 : 7,515.38 = 4,450.55 : x
  2. Step 2: Convert to fraction form
    5,443.20/7,515.38 = 4,450.55/x
  3. Step 3: Cross multiply
    5,443.20x = 7,515.38 × 4,450.55
  4. Step 4: Simplify right side
    5,443.20x = 33,447,548.01
  5. Step 5: Solve for x
    x = 33,447,548.01/5,443.20
  6. Step 6: Final answer
    x = 6,144.83

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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.