Home / 2,187.46-3,277.14-1,091.80

Finding the Fourth Proportional to 2,187.46, 3,277.14 and 1,091.80

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Solution

The fourth proportional to 2,187.46, 3,277.14 and 1,091.80 is: 1,635.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187.46 : 3,277.14 = 1,091.80 : x
  2. Step 2: Convert to fraction form
    2,187.46/3,277.14 = 1,091.80/x
  3. Step 3: Cross multiply
    2,187.46x = 3,277.14 × 1,091.80
  4. Step 4: Simplify right side
    2,187.46x = 3,577,981.45
  5. Step 5: Solve for x
    x = 3,577,981.45/2,187.46
  6. Step 6: Final answer
    x = 1,635.68

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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.