Home / 5,231.57-7,219.92-2,873.74

Finding the Fourth Proportional to 5,231.57, 7,219.92 and 2,873.74

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Solution

The fourth proportional to 5,231.57, 7,219.92 and 2,873.74 is: 3,965.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,231.57 : 7,219.92 = 2,873.74 : x
  2. Step 2: Convert to fraction form
    5,231.57/7,219.92 = 2,873.74/x
  3. Step 3: Cross multiply
    5,231.57x = 7,219.92 × 2,873.74
  4. Step 4: Simplify right side
    5,231.57x = 20,748,136.80
  5. Step 5: Solve for x
    x = 20,748,136.80/5,231.57
  6. Step 6: Final answer
    x = 3,965.95

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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.