Home / 2,179.43-3,269.28-718.59

Finding the Fourth Proportional to 2,179.43, 3,269.28 and 718.59

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Solution

The fourth proportional to 2,179.43, 3,269.28 and 718.59 is: 1,077.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.43 : 3,269.28 = 718.59 : x
  2. Step 2: Convert to fraction form
    2,179.43/3,269.28 = 718.59/x
  3. Step 3: Cross multiply
    2,179.43x = 3,269.28 × 718.59
  4. Step 4: Simplify right side
    2,179.43x = 2,349,271.92
  5. Step 5: Solve for x
    x = 2,349,271.92/2,179.43
  6. Step 6: Final answer
    x = 1,077.93

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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.