Home / 5,231.32-7,219.20-2,873.41

Finding the Fourth Proportional to 5,231.32, 7,219.20 and 2,873.41

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Solution

The fourth proportional to 5,231.32, 7,219.20 and 2,873.41 is: 3,965.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,231.32 : 7,219.20 = 2,873.41 : x
  2. Step 2: Convert to fraction form
    5,231.32/7,219.20 = 2,873.41/x
  3. Step 3: Cross multiply
    5,231.32x = 7,219.20 × 2,873.41
  4. Step 4: Simplify right side
    5,231.32x = 20,743,721.47
  5. Step 5: Solve for x
    x = 20,743,721.47/5,231.32
  6. Step 6: Final answer
    x = 3,965.29

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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.