Home / 2,078.43-2,868.56-1,292.73

Finding the Fourth Proportional to 2,078.43, 2,868.56 and 1,292.73

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Solution

The fourth proportional to 2,078.43, 2,868.56 and 1,292.73 is: 1,784.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078.43 : 2,868.56 = 1,292.73 : x
  2. Step 2: Convert to fraction form
    2,078.43/2,868.56 = 1,292.73/x
  3. Step 3: Cross multiply
    2,078.43x = 2,868.56 × 1,292.73
  4. Step 4: Simplify right side
    2,078.43x = 3,708,267.11
  5. Step 5: Solve for x
    x = 3,708,267.11/2,078.43
  6. Step 6: Final answer
    x = 1,784.17

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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.