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Finding the Fourth Proportional to 2,555.75, 3,833.85 and 706.87

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Solution

The fourth proportional to 2,555.75, 3,833.85 and 706.87 is: 1,060.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,555.75 : 3,833.85 = 706.87 : x
  2. Step 2: Convert to fraction form
    2,555.75/3,833.85 = 706.87/x
  3. Step 3: Cross multiply
    2,555.75x = 3,833.85 × 706.87
  4. Step 4: Simplify right side
    2,555.75x = 2,710,033.55
  5. Step 5: Solve for x
    x = 2,710,033.55/2,555.75
  6. Step 6: Final answer
    x = 1,060.37

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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.