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Finding the Fourth Proportional to 2,644.91, 3,968.21 and 1,658.33

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Solution

The fourth proportional to 2,644.91, 3,968.21 and 1,658.33 is: 2,488.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,644.91 : 3,968.21 = 1,658.33 : x
  2. Step 2: Convert to fraction form
    2,644.91/3,968.21 = 1,658.33/x
  3. Step 3: Cross multiply
    2,644.91x = 3,968.21 × 1,658.33
  4. Step 4: Simplify right side
    2,644.91x = 6,580,601.69
  5. Step 5: Solve for x
    x = 6,580,601.69/2,644.91
  6. Step 6: Final answer
    x = 2,488.02

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1.5x scale

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.