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Finding the Fourth Proportional to 2,540.66, 3,810.99 and 1,079.42

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Solution

The fourth proportional to 2,540.66, 3,810.99 and 1,079.42 is: 1,619.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,540.66 : 3,810.99 = 1,079.42 : x
  2. Step 2: Convert to fraction form
    2,540.66/3,810.99 = 1,079.42/x
  3. Step 3: Cross multiply
    2,540.66x = 3,810.99 × 1,079.42
  4. Step 4: Simplify right side
    2,540.66x = 4,113,658.83
  5. Step 5: Solve for x
    x = 4,113,658.83/2,540.66
  6. Step 6: Final answer
    x = 1,619.13

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.