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Finding the Fourth Proportional to 5,868.21, 8,098.11 and 3,215.63

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Solution

The fourth proportional to 5,868.21, 8,098.11 and 3,215.63 is: 4,437.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,868.21 : 8,098.11 = 3,215.63 : x
  2. Step 2: Convert to fraction form
    5,868.21/8,098.11 = 3,215.63/x
  3. Step 3: Cross multiply
    5,868.21x = 8,098.11 × 3,215.63
  4. Step 4: Simplify right side
    5,868.21x = 26,040,545.70
  5. Step 5: Solve for x
    x = 26,040,545.70/5,868.21
  6. Step 6: Final answer
    x = 4,437.56

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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.