Home / 5,231.37-7,219.10-2,873.49

Finding the Fourth Proportional to 5,231.37, 7,219.10 and 2,873.49

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Solution

The fourth proportional to 5,231.37, 7,219.10 and 2,873.49 is: 3,965.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,231.37 : 7,219.10 = 2,873.49 : x
  2. Step 2: Convert to fraction form
    5,231.37/7,219.10 = 2,873.49/x
  3. Step 3: Cross multiply
    5,231.37x = 7,219.10 × 2,873.49
  4. Step 4: Simplify right side
    5,231.37x = 20,743,997.29
  5. Step 5: Solve for x
    x = 20,743,997.29/5,231.37
  6. Step 6: Final answer
    x = 3,965.31

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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.