Home / 2,945.25-4,419.90-1,213.88

Finding the Fourth Proportional to 2,945.25, 4,419.90 and 1,213.88

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Solution

The fourth proportional to 2,945.25, 4,419.90 and 1,213.88 is: 1,821.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945.25 : 4,419.90 = 1,213.88 : x
  2. Step 2: Convert to fraction form
    2,945.25/4,419.90 = 1,213.88/x
  3. Step 3: Cross multiply
    2,945.25x = 4,419.90 × 1,213.88
  4. Step 4: Simplify right side
    2,945.25x = 5,365,206.11
  5. Step 5: Solve for x
    x = 5,365,206.11/2,945.25
  6. Step 6: Final answer
    x = 1,821.65

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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.