Home / 9,145.31-13,717.97-2,219.75

Finding the Fourth Proportional to 9,145.31, 13,717.97 and 2,219.75

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Solution

The fourth proportional to 9,145.31, 13,717.97 and 2,219.75 is: 3,329.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,145.31 : 13,717.97 = 2,219.75 : x
  2. Step 2: Convert to fraction form
    9,145.31/13,717.97 = 2,219.75/x
  3. Step 3: Cross multiply
    9,145.31x = 13,717.97 × 2,219.75
  4. Step 4: Simplify right side
    9,145.31x = 30,450,463.91
  5. Step 5: Solve for x
    x = 30,450,463.91/9,145.31
  6. Step 6: Final answer
    x = 3,329.63

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Similar ratio
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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.