Home / 2,076.20-2,863.94-1,329.90

Finding the Fourth Proportional to 2,076.20, 2,863.94 and 1,329.90

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Solution

The fourth proportional to 2,076.20, 2,863.94 and 1,329.90 is: 1,834.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,076.20 : 2,863.94 = 1,329.90 : x
  2. Step 2: Convert to fraction form
    2,076.20/2,863.94 = 1,329.90/x
  3. Step 3: Cross multiply
    2,076.20x = 2,863.94 × 1,329.90
  4. Step 4: Simplify right side
    2,076.20x = 3,808,753.81
  5. Step 5: Solve for x
    x = 3,808,753.81/2,076.20
  6. Step 6: Final answer
    x = 1,834.48

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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.