Home / 5,427.23-7,489.13-3,189.20

Finding the Fourth Proportional to 5,427.23, 7,489.13 and 3,189.20

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Solution

The fourth proportional to 5,427.23, 7,489.13 and 3,189.20 is: 4,400.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427.23 : 7,489.13 = 3,189.20 : x
  2. Step 2: Convert to fraction form
    5,427.23/7,489.13 = 3,189.20/x
  3. Step 3: Cross multiply
    5,427.23x = 7,489.13 × 3,189.20
  4. Step 4: Simplify right side
    5,427.23x = 23,884,280.00
  5. Step 5: Solve for x
    x = 23,884,280.00/5,427.23
  6. Step 6: Final answer
    x = 4,400.83

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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.