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Finding the Fourth Proportional to 3,778.79, 5,658.75 and 2,387.93

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Solution

The fourth proportional to 3,778.79, 5,658.75 and 2,387.93 is: 3,575.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,778.79 : 5,658.75 = 2,387.93 : x
  2. Step 2: Convert to fraction form
    3,778.79/5,658.75 = 2,387.93/x
  3. Step 3: Cross multiply
    3,778.79x = 5,658.75 × 2,387.93
  4. Step 4: Simplify right side
    3,778.79x = 13,512,670.59
  5. Step 5: Solve for x
    x = 13,512,670.59/3,778.79
  6. Step 6: Final answer
    x = 3,575.93

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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.