Home / 4,821.31-7,231.97-1,358.56

Finding the Fourth Proportional to 4,821.31, 7,231.97 and 1,358.56

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Solution

The fourth proportional to 4,821.31, 7,231.97 and 1,358.56 is: 2,037.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,821.31 : 7,231.97 = 1,358.56 : x
  2. Step 2: Convert to fraction form
    4,821.31/7,231.97 = 1,358.56/x
  3. Step 3: Cross multiply
    4,821.31x = 7,231.97 × 1,358.56
  4. Step 4: Simplify right side
    4,821.31x = 9,825,065.16
  5. Step 5: Solve for x
    x = 9,825,065.16/4,821.31
  6. Step 6: Final answer
    x = 2,037.84

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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.