Home / 5,231.22-7,219.14-2,873.30

Finding the Fourth Proportional to 5,231.22, 7,219.14 and 2,873.30

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Solution

The fourth proportional to 5,231.22, 7,219.14 and 2,873.30 is: 3,965.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,231.22 : 7,219.14 = 2,873.30 : x
  2. Step 2: Convert to fraction form
    5,231.22/7,219.14 = 2,873.30/x
  3. Step 3: Cross multiply
    5,231.22x = 7,219.14 × 2,873.30
  4. Step 4: Simplify right side
    5,231.22x = 20,742,754.96
  5. Step 5: Solve for x
    x = 20,742,754.96/5,231.22
  6. Step 6: Final answer
    x = 3,965.18

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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.