Home / 5,231.36-7,219.32-2,873.48

Finding the Fourth Proportional to 5,231.36, 7,219.32 and 2,873.48

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Solution

The fourth proportional to 5,231.36, 7,219.32 and 2,873.48 is: 3,965.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,231.36 : 7,219.32 = 2,873.48 : x
  2. Step 2: Convert to fraction form
    5,231.36/7,219.32 = 2,873.48/x
  3. Step 3: Cross multiply
    5,231.36x = 7,219.32 × 2,873.48
  4. Step 4: Simplify right side
    5,231.36x = 20,744,571.63
  5. Step 5: Solve for x
    x = 20,744,571.63/5,231.36
  6. Step 6: Final answer
    x = 3,965.43

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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.