Home / 2,750-3,788.36-2,310.40

Finding the Fourth Proportional to 2,750, 3,788.36 and 2,310.40

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Solution

The fourth proportional to 2,750, 3,788.36 and 2,310.40 is: 3,182.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,750 : 3,788.36 = 2,310.40 : x
  2. Step 2: Convert to fraction form
    2,750/3,788.36 = 2,310.40/x
  3. Step 3: Cross multiply
    2,750x = 3,788.36 × 2,310.40
  4. Step 4: Simplify right side
    2,750x = 8,752,626.94
  5. Step 5: Solve for x
    x = 8,752,626.94/2,750
  6. Step 6: Final answer
    x = 3,182.77

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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.