Home / 1,469.50-2,028.90-938.68

Finding the Fourth Proportional to 1,469.50, 2,028.90 and 938.68

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Solution

The fourth proportional to 1,469.50, 2,028.90 and 938.68 is: 1,296.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,469.50 : 2,028.90 = 938.68 : x
  2. Step 2: Convert to fraction form
    1,469.50/2,028.90 = 938.68/x
  3. Step 3: Cross multiply
    1,469.50x = 2,028.90 × 938.68
  4. Step 4: Simplify right side
    1,469.50x = 1,904,487.85
  5. Step 5: Solve for x
    x = 1,904,487.85/1,469.50
  6. Step 6: Final answer
    x = 1,296.01

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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.