Home / 5,132.20-7,701.26-2,170.40

Finding the Fourth Proportional to 5,132.20, 7,701.26 and 2,170.40

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Solution

The fourth proportional to 5,132.20, 7,701.26 and 2,170.40 is: 3,256.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,132.20 : 7,701.26 = 2,170.40 : x
  2. Step 2: Convert to fraction form
    5,132.20/7,701.26 = 2,170.40/x
  3. Step 3: Cross multiply
    5,132.20x = 7,701.26 × 2,170.40
  4. Step 4: Simplify right side
    5,132.20x = 16,714,814.70
  5. Step 5: Solve for x
    x = 16,714,814.70/5,132.20
  6. Step 6: Final answer
    x = 3,256.85

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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.