Home / 2,491.62-3,438.44-1,372.56

Finding the Fourth Proportional to 2,491.62, 3,438.44 and 1,372.56

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Solution

The fourth proportional to 2,491.62, 3,438.44 and 1,372.56 is: 1,894.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,491.62 : 3,438.44 = 1,372.56 : x
  2. Step 2: Convert to fraction form
    2,491.62/3,438.44 = 1,372.56/x
  3. Step 3: Cross multiply
    2,491.62x = 3,438.44 × 1,372.56
  4. Step 4: Simplify right side
    2,491.62x = 4,719,441.15
  5. Step 5: Solve for x
    x = 4,719,441.15/2,491.62
  6. Step 6: Final answer
    x = 1,894.13

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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.