Home / 3,540.98-5,311.42-2,154.70

Finding the Fourth Proportional to 3,540.98, 5,311.42 and 2,154.70

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Solution

The fourth proportional to 3,540.98, 5,311.42 and 2,154.70 is: 3,232.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,540.98 : 5,311.42 = 2,154.70 : x
  2. Step 2: Convert to fraction form
    3,540.98/5,311.42 = 2,154.70/x
  3. Step 3: Cross multiply
    3,540.98x = 5,311.42 × 2,154.70
  4. Step 4: Simplify right side
    3,540.98x = 11,444,516.67
  5. Step 5: Solve for x
    x = 11,444,516.67/3,540.98
  6. Step 6: Final answer
    x = 3,232.02

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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.