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Finding the Fourth Proportional to 2,765.08, 3,815.80 and 1,523.08

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Solution

The fourth proportional to 2,765.08, 3,815.80 and 1,523.08 is: 2,101.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,765.08 : 3,815.80 = 1,523.08 : x
  2. Step 2: Convert to fraction form
    2,765.08/3,815.80 = 1,523.08/x
  3. Step 3: Cross multiply
    2,765.08x = 3,815.80 × 1,523.08
  4. Step 4: Simplify right side
    2,765.08x = 5,811,768.66
  5. Step 5: Solve for x
    x = 5,811,768.66/2,765.08
  6. Step 6: Final answer
    x = 2,101.84

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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.