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Finding the Fourth Proportional to 2,757.82, 3,806.55 and 1,709.26

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Solution

The fourth proportional to 2,757.82, 3,806.55 and 1,709.26 is: 2,359.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,757.82 : 3,806.55 = 1,709.26 : x
  2. Step 2: Convert to fraction form
    2,757.82/3,806.55 = 1,709.26/x
  3. Step 3: Cross multiply
    2,757.82x = 3,806.55 × 1,709.26
  4. Step 4: Simplify right side
    2,757.82x = 6,506,383.65
  5. Step 5: Solve for x
    x = 6,506,383.65/2,757.82
  6. Step 6: Final answer
    x = 2,359.25

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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.