Home / 5,090.55-7,631.24-2,622.21

Finding the Fourth Proportional to 5,090.55, 7,631.24 and 2,622.21

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Solution

The fourth proportional to 5,090.55, 7,631.24 and 2,622.21 is: 3,930.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,090.55 : 7,631.24 = 2,622.21 : x
  2. Step 2: Convert to fraction form
    5,090.55/7,631.24 = 2,622.21/x
  3. Step 3: Cross multiply
    5,090.55x = 7,631.24 × 2,622.21
  4. Step 4: Simplify right side
    5,090.55x = 20,010,700.73
  5. Step 5: Solve for x
    x = 20,010,700.73/5,090.55
  6. Step 6: Final answer
    x = 3,930.95

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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.