Home / 2,491.28-3,438.02-1,443.95

Finding the Fourth Proportional to 2,491.28, 3,438.02 and 1,443.95

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Solution

The fourth proportional to 2,491.28, 3,438.02 and 1,443.95 is: 1,992.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,491.28 : 3,438.02 = 1,443.95 : x
  2. Step 2: Convert to fraction form
    2,491.28/3,438.02 = 1,443.95/x
  3. Step 3: Cross multiply
    2,491.28x = 3,438.02 × 1,443.95
  4. Step 4: Simplify right side
    2,491.28x = 4,964,328.98
  5. Step 5: Solve for x
    x = 4,964,328.98/2,491.28
  6. Step 6: Final answer
    x = 1,992.68

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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.