Home / 2,078.32-2,869.41-1,293.43

Finding the Fourth Proportional to 2,078.32, 2,869.41 and 1,293.43

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Solution

The fourth proportional to 2,078.32, 2,869.41 and 1,293.43 is: 1,785.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078.32 : 2,869.41 = 1,293.43 : x
  2. Step 2: Convert to fraction form
    2,078.32/2,869.41 = 1,293.43/x
  3. Step 3: Cross multiply
    2,078.32x = 2,869.41 × 1,293.43
  4. Step 4: Simplify right side
    2,078.32x = 3,711,380.98
  5. Step 5: Solve for x
    x = 3,711,380.98/2,078.32
  6. Step 6: Final answer
    x = 1,785.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.