Home / 1,360.22-2,039.82-579.82

Finding the Fourth Proportional to 1,360.22, 2,039.82 and 579.82

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Solution

The fourth proportional to 1,360.22, 2,039.82 and 579.82 is: 869.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,360.22 : 2,039.82 = 579.82 : x
  2. Step 2: Convert to fraction form
    1,360.22/2,039.82 = 579.82/x
  3. Step 3: Cross multiply
    1,360.22x = 2,039.82 × 579.82
  4. Step 4: Simplify right side
    1,360.22x = 1,182,728.43
  5. Step 5: Solve for x
    x = 1,182,728.43/1,360.22
  6. Step 6: Final answer
    x = 869.51

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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.