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Finding the Fourth Proportional to 3,651.60, 5,471.10 and 1,699.80

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Solution

The fourth proportional to 3,651.60, 5,471.10 and 1,699.80 is: 2,546.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,651.60 : 5,471.10 = 1,699.80 : x
  2. Step 2: Convert to fraction form
    3,651.60/5,471.10 = 1,699.80/x
  3. Step 3: Cross multiply
    3,651.60x = 5,471.10 × 1,699.80
  4. Step 4: Simplify right side
    3,651.60x = 9,299,775.78
  5. Step 5: Solve for x
    x = 9,299,775.78/3,651.60
  6. Step 6: Final answer
    x = 2,546.77

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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.