Home / 3,960.62-5,465.85-2,282.29

Finding the Fourth Proportional to 3,960.62, 5,465.85 and 2,282.29

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Solution

The fourth proportional to 3,960.62, 5,465.85 and 2,282.29 is: 3,149.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,960.62 : 5,465.85 = 2,282.29 : x
  2. Step 2: Convert to fraction form
    3,960.62/5,465.85 = 2,282.29/x
  3. Step 3: Cross multiply
    3,960.62x = 5,465.85 × 2,282.29
  4. Step 4: Simplify right side
    3,960.62x = 12,474,641.13
  5. Step 5: Solve for x
    x = 12,474,641.13/3,960.62
  6. Step 6: Final answer
    x = 3,149.67

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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.