Home / 5,540.85-8,312.09-1,982.70

Finding the Fourth Proportional to 5,540.85, 8,312.09 and 1,982.70

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Solution

The fourth proportional to 5,540.85, 8,312.09 and 1,982.70 is: 2,974.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,540.85 : 8,312.09 = 1,982.70 : x
  2. Step 2: Convert to fraction form
    5,540.85/8,312.09 = 1,982.70/x
  3. Step 3: Cross multiply
    5,540.85x = 8,312.09 × 1,982.70
  4. Step 4: Simplify right side
    5,540.85x = 16,480,370.93
  5. Step 5: Solve for x
    x = 16,480,370.93/5,540.85
  6. Step 6: Final answer
    x = 2,974.34

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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.