Home / 3,168.60-4,755.18-1,221.26

Finding the Fourth Proportional to 3,168.60, 4,755.18 and 1,221.26

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Solution

The fourth proportional to 3,168.60, 4,755.18 and 1,221.26 is: 1,832.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,168.60 : 4,755.18 = 1,221.26 : x
  2. Step 2: Convert to fraction form
    3,168.60/4,755.18 = 1,221.26/x
  3. Step 3: Cross multiply
    3,168.60x = 4,755.18 × 1,221.26
  4. Step 4: Simplify right side
    3,168.60x = 5,807,311.13
  5. Step 5: Solve for x
    x = 5,807,311.13/3,168.60
  6. Step 6: Final answer
    x = 1,832.77

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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.