Home / 5,189.16-7,778.88-2,589.24

Finding the Fourth Proportional to 5,189.16, 7,778.88 and 2,589.24

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Solution

The fourth proportional to 5,189.16, 7,778.88 and 2,589.24 is: 3,881.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,189.16 : 7,778.88 = 2,589.24 : x
  2. Step 2: Convert to fraction form
    5,189.16/7,778.88 = 2,589.24/x
  3. Step 3: Cross multiply
    5,189.16x = 7,778.88 × 2,589.24
  4. Step 4: Simplify right side
    5,189.16x = 20,141,387.25
  5. Step 5: Solve for x
    x = 20,141,387.25/5,189.16
  6. Step 6: Final answer
    x = 3,881.44

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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.