Home / 3,269.21-4,902.28-1,187.75

Finding the Fourth Proportional to 3,269.21, 4,902.28 and 1,187.75

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Solution

The fourth proportional to 3,269.21, 4,902.28 and 1,187.75 is: 1,781.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,269.21 : 4,902.28 = 1,187.75 : x
  2. Step 2: Convert to fraction form
    3,269.21/4,902.28 = 1,187.75/x
  3. Step 3: Cross multiply
    3,269.21x = 4,902.28 × 1,187.75
  4. Step 4: Simplify right side
    3,269.21x = 5,822,677.13
  5. Step 5: Solve for x
    x = 5,822,677.13/3,269.21
  6. Step 6: Final answer
    x = 1,781.07

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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.