Home / 5,872.20-8,103.74-3,219.45

Finding the Fourth Proportional to 5,872.20, 8,103.74 and 3,219.45

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Solution

The fourth proportional to 5,872.20, 8,103.74 and 3,219.45 is: 4,442.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,872.20 : 8,103.74 = 3,219.45 : x
  2. Step 2: Convert to fraction form
    5,872.20/8,103.74 = 3,219.45/x
  3. Step 3: Cross multiply
    5,872.20x = 8,103.74 × 3,219.45
  4. Step 4: Simplify right side
    5,872.20x = 26,089,585.74
  5. Step 5: Solve for x
    x = 26,089,585.74/5,872.20
  6. Step 6: Final answer
    x = 4,442.90

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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.