Home / 6,327.12-9,490.81-2,171.90

Finding the Fourth Proportional to 6,327.12, 9,490.81 and 2,171.90

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Solution

The fourth proportional to 6,327.12, 9,490.81 and 2,171.90 is: 3,257.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,327.12 : 9,490.81 = 2,171.90 : x
  2. Step 2: Convert to fraction form
    6,327.12/9,490.81 = 2,171.90/x
  3. Step 3: Cross multiply
    6,327.12x = 9,490.81 × 2,171.90
  4. Step 4: Simplify right side
    6,327.12x = 20,613,108.54
  5. Step 5: Solve for x
    x = 20,613,108.54/6,327.12
  6. Step 6: Final answer
    x = 3,257.90

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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.