Home / 3,319.65-4,972.25-2,145.56

Finding the Fourth Proportional to 3,319.65, 4,972.25 and 2,145.56

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Solution

The fourth proportional to 3,319.65, 4,972.25 and 2,145.56 is: 3,213.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,319.65 : 4,972.25 = 2,145.56 : x
  2. Step 2: Convert to fraction form
    3,319.65/4,972.25 = 2,145.56/x
  3. Step 3: Cross multiply
    3,319.65x = 4,972.25 × 2,145.56
  4. Step 4: Simplify right side
    3,319.65x = 10,668,241.21
  5. Step 5: Solve for x
    x = 10,668,241.21/3,319.65
  6. Step 6: Final answer
    x = 3,213.66

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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.