Home / 4,108.87-6,163.62-1,187.20

Finding the Fourth Proportional to 4,108.87, 6,163.62 and 1,187.20

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Solution

The fourth proportional to 4,108.87, 6,163.62 and 1,187.20 is: 1,780.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,108.87 : 6,163.62 = 1,187.20 : x
  2. Step 2: Convert to fraction form
    4,108.87/6,163.62 = 1,187.20/x
  3. Step 3: Cross multiply
    4,108.87x = 6,163.62 × 1,187.20
  4. Step 4: Simplify right side
    4,108.87x = 7,317,449.66
  5. Step 5: Solve for x
    x = 7,317,449.66/4,108.87
  6. Step 6: Final answer
    x = 1,780.89

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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.