Home / 2,187.18-3,277.71-1,447.65

Finding the Fourth Proportional to 2,187.18, 3,277.71 and 1,447.65

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Solution

The fourth proportional to 2,187.18, 3,277.71 and 1,447.65 is: 2,169.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187.18 : 3,277.71 = 1,447.65 : x
  2. Step 2: Convert to fraction form
    2,187.18/3,277.71 = 1,447.65/x
  3. Step 3: Cross multiply
    2,187.18x = 3,277.71 × 1,447.65
  4. Step 4: Simplify right side
    2,187.18x = 4,744,976.88
  5. Step 5: Solve for x
    x = 4,744,976.88/2,187.18
  6. Step 6: Final answer
    x = 2,169.45

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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.