Home / 2,491.28-3,437.20-1,443.14

Finding the Fourth Proportional to 2,491.28, 3,437.20 and 1,443.14

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Solution

The fourth proportional to 2,491.28, 3,437.20 and 1,443.14 is: 1,991.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,491.28 : 3,437.20 = 1,443.14 : x
  2. Step 2: Convert to fraction form
    2,491.28/3,437.20 = 1,443.14/x
  3. Step 3: Cross multiply
    2,491.28x = 3,437.20 × 1,443.14
  4. Step 4: Simplify right side
    2,491.28x = 4,960,360.81
  5. Step 5: Solve for x
    x = 4,960,360.81/2,491.28
  6. Step 6: Final answer
    x = 1,991.09

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.