Home / 5,872.45-8,103.91-3,219.85

Finding the Fourth Proportional to 5,872.45, 8,103.91 and 3,219.85

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Solution

The fourth proportional to 5,872.45, 8,103.91 and 3,219.85 is: 4,443.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,872.45 : 8,103.91 = 3,219.85 : x
  2. Step 2: Convert to fraction form
    5,872.45/8,103.91 = 3,219.85/x
  3. Step 3: Cross multiply
    5,872.45x = 8,103.91 × 3,219.85
  4. Step 4: Simplify right side
    5,872.45x = 26,093,374.61
  5. Step 5: Solve for x
    x = 26,093,374.61/5,872.45
  6. Step 6: Final answer
    x = 4,443.35

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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.