Home / 3,424.54-5,137.36-1,115.50

Finding the Fourth Proportional to 3,424.54, 5,137.36 and 1,115.50

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Solution

The fourth proportional to 3,424.54, 5,137.36 and 1,115.50 is: 1,673.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,424.54 : 5,137.36 = 1,115.50 : x
  2. Step 2: Convert to fraction form
    3,424.54/5,137.36 = 1,115.50/x
  3. Step 3: Cross multiply
    3,424.54x = 5,137.36 × 1,115.50
  4. Step 4: Simplify right side
    3,424.54x = 5,730,725.08
  5. Step 5: Solve for x
    x = 5,730,725.08/3,424.54
  6. Step 6: Final answer
    x = 1,673.43

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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.