Home / 1,445.06-2,167.97-579.38

Finding the Fourth Proportional to 1,445.06, 2,167.97 and 579.38

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Solution

The fourth proportional to 1,445.06, 2,167.97 and 579.38 is: 869.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,445.06 : 2,167.97 = 579.38 : x
  2. Step 2: Convert to fraction form
    1,445.06/2,167.97 = 579.38/x
  3. Step 3: Cross multiply
    1,445.06x = 2,167.97 × 579.38
  4. Step 4: Simplify right side
    1,445.06x = 1,256,064.72
  5. Step 5: Solve for x
    x = 1,256,064.72/1,445.06
  6. Step 6: Final answer
    x = 869.21

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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.