Home / 2,170.30-3,255.45-1,651.90

Finding the Fourth Proportional to 2,170.30, 3,255.45 and 1,651.90

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Solution

The fourth proportional to 2,170.30, 3,255.45 and 1,651.90 is: 2,477.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,170.30 : 3,255.45 = 1,651.90 : x
  2. Step 2: Convert to fraction form
    2,170.30/3,255.45 = 1,651.90/x
  3. Step 3: Cross multiply
    2,170.30x = 3,255.45 × 1,651.90
  4. Step 4: Simplify right side
    2,170.30x = 5,377,677.86
  5. Step 5: Solve for x
    x = 5,377,677.86/2,170.30
  6. Step 6: Final answer
    x = 2,477.85

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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.