Home / 2,188.11-3,277.61-1,089.14

Finding the Fourth Proportional to 2,188.11, 3,277.61 and 1,089.14

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Solution

The fourth proportional to 2,188.11, 3,277.61 and 1,089.14 is: 1,631.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,188.11 : 3,277.61 = 1,089.14 : x
  2. Step 2: Convert to fraction form
    2,188.11/3,277.61 = 1,089.14/x
  3. Step 3: Cross multiply
    2,188.11x = 3,277.61 × 1,089.14
  4. Step 4: Simplify right side
    2,188.11x = 3,569,770.71
  5. Step 5: Solve for x
    x = 3,569,770.71/2,188.11
  6. Step 6: Final answer
    x = 1,631.44

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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.