Home / 5,231.50-7,219.40-2,873.60

Finding the Fourth Proportional to 5,231.50, 7,219.40 and 2,873.60

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Solution

The fourth proportional to 5,231.50, 7,219.40 and 2,873.60 is: 3,965.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,231.50 : 7,219.40 = 2,873.60 : x
  2. Step 2: Convert to fraction form
    5,231.50/7,219.40 = 2,873.60/x
  3. Step 3: Cross multiply
    5,231.50x = 7,219.40 × 2,873.60
  4. Step 4: Simplify right side
    5,231.50x = 20,745,667.84
  5. Step 5: Solve for x
    x = 20,745,667.84/5,231.50
  6. Step 6: Final answer
    x = 3,965.53

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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.