Home / 3,520.43-5,279.42-1,670.29

Finding the Fourth Proportional to 3,520.43, 5,279.42 and 1,670.29

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Solution

The fourth proportional to 3,520.43, 5,279.42 and 1,670.29 is: 2,504.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.43 : 5,279.42 = 1,670.29 : x
  2. Step 2: Convert to fraction form
    3,520.43/5,279.42 = 1,670.29/x
  3. Step 3: Cross multiply
    3,520.43x = 5,279.42 × 1,670.29
  4. Step 4: Simplify right side
    3,520.43x = 8,818,136.03
  5. Step 5: Solve for x
    x = 8,818,136.03/3,520.43
  6. Step 6: Final answer
    x = 2,504.85

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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.