Home / 3,491.31-5,239.01-1,299.99

Finding the Fourth Proportional to 3,491.31, 5,239.01 and 1,299.99

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Solution

The fourth proportional to 3,491.31, 5,239.01 and 1,299.99 is: 1,950.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,491.31 : 5,239.01 = 1,299.99 : x
  2. Step 2: Convert to fraction form
    3,491.31/5,239.01 = 1,299.99/x
  3. Step 3: Cross multiply
    3,491.31x = 5,239.01 × 1,299.99
  4. Step 4: Simplify right side
    3,491.31x = 6,810,660.61
  5. Step 5: Solve for x
    x = 6,810,660.61/3,491.31
  6. Step 6: Final answer
    x = 1,950.75

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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.