Home / 5,090.76-7,632.36-2,167.20

Finding the Fourth Proportional to 5,090.76, 7,632.36 and 2,167.20

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Solution

The fourth proportional to 5,090.76, 7,632.36 and 2,167.20 is: 3,249.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,090.76 : 7,632.36 = 2,167.20 : x
  2. Step 2: Convert to fraction form
    5,090.76/7,632.36 = 2,167.20/x
  3. Step 3: Cross multiply
    5,090.76x = 7,632.36 × 2,167.20
  4. Step 4: Simplify right side
    5,090.76x = 16,540,850.59
  5. Step 5: Solve for x
    x = 16,540,850.59/5,090.76
  6. Step 6: Final answer
    x = 3,249.19

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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.