Home / 2,761.05-4,139.23-1,199.88

Finding the Fourth Proportional to 2,761.05, 4,139.23 and 1,199.88

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Solution

The fourth proportional to 2,761.05, 4,139.23 and 1,199.88 is: 1,798.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,761.05 : 4,139.23 = 1,199.88 : x
  2. Step 2: Convert to fraction form
    2,761.05/4,139.23 = 1,199.88/x
  3. Step 3: Cross multiply
    2,761.05x = 4,139.23 × 1,199.88
  4. Step 4: Simplify right side
    2,761.05x = 4,966,579.29
  5. Step 5: Solve for x
    x = 4,966,579.29/2,761.05
  6. Step 6: Final answer
    x = 1,798.80

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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.