Home / 5,219.71-7,203.38-2,861.83

Finding the Fourth Proportional to 5,219.71, 7,203.38 and 2,861.83

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Solution

The fourth proportional to 5,219.71, 7,203.38 and 2,861.83 is: 3,949.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,219.71 : 7,203.38 = 2,861.83 : x
  2. Step 2: Convert to fraction form
    5,219.71/7,203.38 = 2,861.83/x
  3. Step 3: Cross multiply
    5,219.71x = 7,203.38 × 2,861.83
  4. Step 4: Simplify right side
    5,219.71x = 20,614,848.99
  5. Step 5: Solve for x
    x = 20,614,848.99/5,219.71
  6. Step 6: Final answer
    x = 3,949.42

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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.