Home / 2,213.24-3,319.40-652.88

Finding the Fourth Proportional to 2,213.24, 3,319.40 and 652.88

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Solution

The fourth proportional to 2,213.24, 3,319.40 and 652.88 is: 979.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,213.24 : 3,319.40 = 652.88 : x
  2. Step 2: Convert to fraction form
    2,213.24/3,319.40 = 652.88/x
  3. Step 3: Cross multiply
    2,213.24x = 3,319.40 × 652.88
  4. Step 4: Simplify right side
    2,213.24x = 2,167,169.87
  5. Step 5: Solve for x
    x = 2,167,169.87/2,213.24
  6. Step 6: Final answer
    x = 979.18

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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.