Home / 3,520.68-5,255.01-3,105.63

Finding the Fourth Proportional to 3,520.68, 5,255.01 and 3,105.63

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Solution

The fourth proportional to 3,520.68, 5,255.01 and 3,105.63 is: 4,635.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.68 : 5,255.01 = 3,105.63 : x
  2. Step 2: Convert to fraction form
    3,520.68/5,255.01 = 3,105.63/x
  3. Step 3: Cross multiply
    3,520.68x = 5,255.01 × 3,105.63
  4. Step 4: Simplify right side
    3,520.68x = 16,320,116.71
  5. Step 5: Solve for x
    x = 16,320,116.71/3,520.68
  6. Step 6: Final answer
    x = 4,635.50

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.