Home / 2,945.43-4,418.96-1,213.65

Finding the Fourth Proportional to 2,945.43, 4,418.96 and 1,213.65

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Solution

The fourth proportional to 2,945.43, 4,418.96 and 1,213.65 is: 1,820.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945.43 : 4,418.96 = 1,213.65 : x
  2. Step 2: Convert to fraction form
    2,945.43/4,418.96 = 1,213.65/x
  3. Step 3: Cross multiply
    2,945.43x = 4,418.96 × 1,213.65
  4. Step 4: Simplify right side
    2,945.43x = 5,363,064.74
  5. Step 5: Solve for x
    x = 5,363,064.74/2,945.43
  6. Step 6: Final answer
    x = 1,820.81

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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.