Home / 3,380.03-5,069.12-1,187.56

Finding the Fourth Proportional to 3,380.03, 5,069.12 and 1,187.56

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Solution

The fourth proportional to 3,380.03, 5,069.12 and 1,187.56 is: 1,781.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,380.03 : 5,069.12 = 1,187.56 : x
  2. Step 2: Convert to fraction form
    3,380.03/5,069.12 = 1,187.56/x
  3. Step 3: Cross multiply
    3,380.03x = 5,069.12 × 1,187.56
  4. Step 4: Simplify right side
    3,380.03x = 6,019,858.80
  5. Step 5: Solve for x
    x = 6,019,858.80/3,380.03
  6. Step 6: Final answer
    x = 1,781.01

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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.