Home / 3,438.71-5,153.83-1,356.62

Finding the Fourth Proportional to 3,438.71, 5,153.83 and 1,356.62

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Solution

The fourth proportional to 3,438.71, 5,153.83 and 1,356.62 is: 2,033.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,438.71 : 5,153.83 = 1,356.62 : x
  2. Step 2: Convert to fraction form
    3,438.71/5,153.83 = 1,356.62/x
  3. Step 3: Cross multiply
    3,438.71x = 5,153.83 × 1,356.62
  4. Step 4: Simplify right side
    3,438.71x = 6,991,788.85
  5. Step 5: Solve for x
    x = 6,991,788.85/3,438.71
  6. Step 6: Final answer
    x = 2,033.26

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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.