Home / 2,215.13-3,323.33-655.13

Finding the Fourth Proportional to 2,215.13, 3,323.33 and 655.13

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Solution

The fourth proportional to 2,215.13, 3,323.33 and 655.13 is: 982.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,215.13 : 3,323.33 = 655.13 : x
  2. Step 2: Convert to fraction form
    2,215.13/3,323.33 = 655.13/x
  3. Step 3: Cross multiply
    2,215.13x = 3,323.33 × 655.13
  4. Step 4: Simplify right side
    2,215.13x = 2,177,218.34
  5. Step 5: Solve for x
    x = 2,177,218.34/2,215.13
  6. Step 6: Final answer
    x = 982.88

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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.