Home / 3,589.82-5,389.05-2,138.30

Finding the Fourth Proportional to 3,589.82, 5,389.05 and 2,138.30

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Solution

The fourth proportional to 3,589.82, 5,389.05 and 2,138.30 is: 3,210.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,589.82 : 5,389.05 = 2,138.30 : x
  2. Step 2: Convert to fraction form
    3,589.82/5,389.05 = 2,138.30/x
  3. Step 3: Cross multiply
    3,589.82x = 5,389.05 × 2,138.30
  4. Step 4: Simplify right side
    3,589.82x = 11,523,405.62
  5. Step 5: Solve for x
    x = 11,523,405.62/3,589.82
  6. Step 6: Final answer
    x = 3,210.02

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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.