Home / 7,231.38-10,839.47-3,528.51

Finding the Fourth Proportional to 7,231.38, 10,839.47 and 3,528.51

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Solution

The fourth proportional to 7,231.38, 10,839.47 and 3,528.51 is: 5,289.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,231.38 : 10,839.47 = 3,528.51 : x
  2. Step 2: Convert to fraction form
    7,231.38/10,839.47 = 3,528.51/x
  3. Step 3: Cross multiply
    7,231.38x = 10,839.47 × 3,528.51
  4. Step 4: Simplify right side
    7,231.38x = 38,247,200.82
  5. Step 5: Solve for x
    x = 38,247,200.82/7,231.38
  6. Step 6: Final answer
    x = 5,289.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.