Home / 5,231.12-7,218.63-2,873.07

Finding the Fourth Proportional to 5,231.12, 7,218.63 and 2,873.07

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Solution

The fourth proportional to 5,231.12, 7,218.63 and 2,873.07 is: 3,964.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,231.12 : 7,218.63 = 2,873.07 : x
  2. Step 2: Convert to fraction form
    5,231.12/7,218.63 = 2,873.07/x
  3. Step 3: Cross multiply
    5,231.12x = 7,218.63 × 2,873.07
  4. Step 4: Simplify right side
    5,231.12x = 20,739,629.29
  5. Step 5: Solve for x
    x = 20,739,629.29/5,231.12
  6. Step 6: Final answer
    x = 3,964.67

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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.