Home / 5,553.05-7,650.19-3,871.43

Finding the Fourth Proportional to 5,553.05, 7,650.19 and 3,871.43

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Solution

The fourth proportional to 5,553.05, 7,650.19 and 3,871.43 is: 5,333.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,553.05 : 7,650.19 = 3,871.43 : x
  2. Step 2: Convert to fraction form
    5,553.05/7,650.19 = 3,871.43/x
  3. Step 3: Cross multiply
    5,553.05x = 7,650.19 × 3,871.43
  4. Step 4: Simplify right side
    5,553.05x = 29,617,175.07
  5. Step 5: Solve for x
    x = 29,617,175.07/5,553.05
  6. Step 6: Final answer
    x = 5,333.50

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1.5x scale

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.