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Finding the Fourth Proportional to 3,995.85, 5,982.47 and 2,117.46

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Solution

The fourth proportional to 3,995.85, 5,982.47 and 2,117.46 is: 3,170.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,995.85 : 5,982.47 = 2,117.46 : x
  2. Step 2: Convert to fraction form
    3,995.85/5,982.47 = 2,117.46/x
  3. Step 3: Cross multiply
    3,995.85x = 5,982.47 × 2,117.46
  4. Step 4: Simplify right side
    3,995.85x = 12,667,640.93
  5. Step 5: Solve for x
    x = 12,667,640.93/3,995.85
  6. Step 6: Final answer
    x = 3,170.20

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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.