Home / 5,872.21-8,103.61-3,219.56

Finding the Fourth Proportional to 5,872.21, 8,103.61 and 3,219.56

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Solution

The fourth proportional to 5,872.21, 8,103.61 and 3,219.56 is: 4,442.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,872.21 : 8,103.61 = 3,219.56 : x
  2. Step 2: Convert to fraction form
    5,872.21/8,103.61 = 3,219.56/x
  3. Step 3: Cross multiply
    5,872.21x = 8,103.61 × 3,219.56
  4. Step 4: Simplify right side
    5,872.21x = 26,090,058.61
  5. Step 5: Solve for x
    x = 26,090,058.61/5,872.21
  6. Step 6: Final answer
    x = 4,442.97

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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.