Home / 5,872.05-8,103.45-3,219.42

Finding the Fourth Proportional to 5,872.05, 8,103.45 and 3,219.42

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Solution

The fourth proportional to 5,872.05, 8,103.45 and 3,219.42 is: 4,442.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,872.05 : 8,103.45 = 3,219.42 : x
  2. Step 2: Convert to fraction form
    5,872.05/8,103.45 = 3,219.42/x
  3. Step 3: Cross multiply
    5,872.05x = 8,103.45 × 3,219.42
  4. Step 4: Simplify right side
    5,872.05x = 26,088,409.00
  5. Step 5: Solve for x
    x = 26,088,409.00/5,872.05
  6. Step 6: Final answer
    x = 4,442.81

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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.