Home / 2,761.14-4,140.78-1,005.74

Finding the Fourth Proportional to 2,761.14, 4,140.78 and 1,005.74

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Solution

The fourth proportional to 2,761.14, 4,140.78 and 1,005.74 is: 1,508.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,761.14 : 4,140.78 = 1,005.74 : x
  2. Step 2: Convert to fraction form
    2,761.14/4,140.78 = 1,005.74/x
  3. Step 3: Cross multiply
    2,761.14x = 4,140.78 × 1,005.74
  4. Step 4: Simplify right side
    2,761.14x = 4,164,525.28
  5. Step 5: Solve for x
    x = 4,164,525.28/2,761.14
  6. Step 6: Final answer
    x = 1,508.26

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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.