Home / 2,760.39-4,140.60-1,029

Finding the Fourth Proportional to 2,760.39, 4,140.60 and 1,029

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Solution

The fourth proportional to 2,760.39, 4,140.60 and 1,029 is: 1,543.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,760.39 : 4,140.60 = 1,029 : x
  2. Step 2: Convert to fraction form
    2,760.39/4,140.60 = 1,029/x
  3. Step 3: Cross multiply
    2,760.39x = 4,140.60 × 1,029
  4. Step 4: Simplify right side
    2,760.39x = 4,260,677.40
  5. Step 5: Solve for x
    x = 4,260,677.40/2,760.39
  6. Step 6: Final answer
    x = 1,543.51

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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.