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Finding the Fourth Proportional to 2,757.85, 3,809.71 and 2,508.73

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Solution

The fourth proportional to 2,757.85, 3,809.71 and 2,508.73 is: 3,465.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,757.85 : 3,809.71 = 2,508.73 : x
  2. Step 2: Convert to fraction form
    2,757.85/3,809.71 = 2,508.73/x
  3. Step 3: Cross multiply
    2,757.85x = 3,809.71 × 2,508.73
  4. Step 4: Simplify right side
    2,757.85x = 9,557,533.77
  5. Step 5: Solve for x
    x = 9,557,533.77/2,757.85
  6. Step 6: Final answer
    x = 3,465.57

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1.5x scale

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.