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Finding the Fourth Proportional to 2,456.81, 3,684.65 and 701.78

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Solution

The fourth proportional to 2,456.81, 3,684.65 and 701.78 is: 1,052.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,456.81 : 3,684.65 = 701.78 : x
  2. Step 2: Convert to fraction form
    2,456.81/3,684.65 = 701.78/x
  3. Step 3: Cross multiply
    2,456.81x = 3,684.65 × 701.78
  4. Step 4: Simplify right side
    2,456.81x = 2,585,791.74
  5. Step 5: Solve for x
    x = 2,585,791.74/2,456.81
  6. Step 6: Final answer
    x = 1,052.50

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Why These Related Problems?

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