Home / 2,221.24-3,065.32-1,213.02

Finding the Fourth Proportional to 2,221.24, 3,065.32 and 1,213.02

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Solution

The fourth proportional to 2,221.24, 3,065.32 and 1,213.02 is: 1,673.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221.24 : 3,065.32 = 1,213.02 : x
  2. Step 2: Convert to fraction form
    2,221.24/3,065.32 = 1,213.02/x
  3. Step 3: Cross multiply
    2,221.24x = 3,065.32 × 1,213.02
  4. Step 4: Simplify right side
    2,221.24x = 3,718,294.47
  5. Step 5: Solve for x
    x = 3,718,294.47/2,221.24
  6. Step 6: Final answer
    x = 1,673.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.