Home / 2,761.73-4,139.60-1,376.09

Finding the Fourth Proportional to 2,761.73, 4,139.60 and 1,376.09

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Solution

The fourth proportional to 2,761.73, 4,139.60 and 1,376.09 is: 2,062.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,761.73 : 4,139.60 = 1,376.09 : x
  2. Step 2: Convert to fraction form
    2,761.73/4,139.60 = 1,376.09/x
  3. Step 3: Cross multiply
    2,761.73x = 4,139.60 × 1,376.09
  4. Step 4: Simplify right side
    2,761.73x = 5,696,465.63
  5. Step 5: Solve for x
    x = 5,696,465.63/2,761.73
  6. Step 6: Final answer
    x = 2,062.64

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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.