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Finding the Fourth Proportional to 2,439.74, 3,658.69 and 795.90

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Solution

The fourth proportional to 2,439.74, 3,658.69 and 795.90 is: 1,193.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,439.74 : 3,658.69 = 795.90 : x
  2. Step 2: Convert to fraction form
    2,439.74/3,658.69 = 795.90/x
  3. Step 3: Cross multiply
    2,439.74x = 3,658.69 × 795.90
  4. Step 4: Simplify right side
    2,439.74x = 2,911,951.37
  5. Step 5: Solve for x
    x = 2,911,951.37/2,439.74
  6. Step 6: Final answer
    x = 1,193.55

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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.