Home / 4,932.28-7,397.31-1,421.54

Finding the Fourth Proportional to 4,932.28, 7,397.31 and 1,421.54

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Solution

The fourth proportional to 4,932.28, 7,397.31 and 1,421.54 is: 2,131.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,932.28 : 7,397.31 = 1,421.54 : x
  2. Step 2: Convert to fraction form
    4,932.28/7,397.31 = 1,421.54/x
  3. Step 3: Cross multiply
    4,932.28x = 7,397.31 × 1,421.54
  4. Step 4: Simplify right side
    4,932.28x = 10,515,568.14
  5. Step 5: Solve for x
    x = 10,515,568.14/4,932.28
  6. Step 6: Final answer
    x = 2,131.99

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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.