Home / 3,469.70-5,203.26-1,129.10

Finding the Fourth Proportional to 3,469.70, 5,203.26 and 1,129.10

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Solution

The fourth proportional to 3,469.70, 5,203.26 and 1,129.10 is: 1,693.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,469.70 : 5,203.26 = 1,129.10 : x
  2. Step 2: Convert to fraction form
    3,469.70/5,203.26 = 1,129.10/x
  3. Step 3: Cross multiply
    3,469.70x = 5,203.26 × 1,129.10
  4. Step 4: Simplify right side
    3,469.70x = 5,875,000.87
  5. Step 5: Solve for x
    x = 5,875,000.87/3,469.70
  6. Step 6: Final answer
    x = 1,693.23

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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.