Home / 2,491.47-3,438.27-1,372.41

Finding the Fourth Proportional to 2,491.47, 3,438.27 and 1,372.41

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Solution

The fourth proportional to 2,491.47, 3,438.27 and 1,372.41 is: 1,893.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,491.47 : 3,438.27 = 1,372.41 : x
  2. Step 2: Convert to fraction form
    2,491.47/3,438.27 = 1,372.41/x
  3. Step 3: Cross multiply
    2,491.47x = 3,438.27 × 1,372.41
  4. Step 4: Simplify right side
    2,491.47x = 4,718,716.13
  5. Step 5: Solve for x
    x = 4,718,716.13/2,491.47
  6. Step 6: Final answer
    x = 1,893.95

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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.