Home / 3,279.07-4,914.45-1,429.69

Finding the Fourth Proportional to 3,279.07, 4,914.45 and 1,429.69

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Solution

The fourth proportional to 3,279.07, 4,914.45 and 1,429.69 is: 2,142.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,279.07 : 4,914.45 = 1,429.69 : x
  2. Step 2: Convert to fraction form
    3,279.07/4,914.45 = 1,429.69/x
  3. Step 3: Cross multiply
    3,279.07x = 4,914.45 × 1,429.69
  4. Step 4: Simplify right side
    3,279.07x = 7,026,140.02
  5. Step 5: Solve for x
    x = 7,026,140.02/3,279.07
  6. Step 6: Final answer
    x = 2,142.72

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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.