Home / 3,589.05-5,383.10-1,280.25

Finding the Fourth Proportional to 3,589.05, 5,383.10 and 1,280.25

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Solution

The fourth proportional to 3,589.05, 5,383.10 and 1,280.25 is: 1,920.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,589.05 : 5,383.10 = 1,280.25 : x
  2. Step 2: Convert to fraction form
    3,589.05/5,383.10 = 1,280.25/x
  3. Step 3: Cross multiply
    3,589.05x = 5,383.10 × 1,280.25
  4. Step 4: Simplify right side
    3,589.05x = 6,891,707.37
  5. Step 5: Solve for x
    x = 6,891,707.37/3,589.05
  6. Step 6: Final answer
    x = 1,920.20

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Double scale
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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.