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Finding the Fourth Proportional to 3,788.92, 5,230.76 and 2,658.06

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Solution

The fourth proportional to 3,788.92, 5,230.76 and 2,658.06 is: 3,669.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,788.92 : 5,230.76 = 2,658.06 : x
  2. Step 2: Convert to fraction form
    3,788.92/5,230.76 = 2,658.06/x
  3. Step 3: Cross multiply
    3,788.92x = 5,230.76 × 2,658.06
  4. Step 4: Simplify right side
    3,788.92x = 13,903,673.93
  5. Step 5: Solve for x
    x = 13,903,673.93/3,788.92
  6. Step 6: Final answer
    x = 3,669.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.