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Finding the Fourth Proportional to 2,390.52, 3,586.79 and 1,843.77

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Solution

The fourth proportional to 2,390.52, 3,586.79 and 1,843.77 is: 2,766.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,390.52 : 3,586.79 = 1,843.77 : x
  2. Step 2: Convert to fraction form
    2,390.52/3,586.79 = 1,843.77/x
  3. Step 3: Cross multiply
    2,390.52x = 3,586.79 × 1,843.77
  4. Step 4: Simplify right side
    2,390.52x = 6,613,215.80
  5. Step 5: Solve for x
    x = 6,613,215.80/2,390.52
  6. Step 6: Final answer
    x = 2,766.43

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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.