Home / 3,550.40-5,328.10-1,331.14

Finding the Fourth Proportional to 3,550.40, 5,328.10 and 1,331.14

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Solution

The fourth proportional to 3,550.40, 5,328.10 and 1,331.14 is: 1,997.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,550.40 : 5,328.10 = 1,331.14 : x
  2. Step 2: Convert to fraction form
    3,550.40/5,328.10 = 1,331.14/x
  3. Step 3: Cross multiply
    3,550.40x = 5,328.10 × 1,331.14
  4. Step 4: Simplify right side
    3,550.40x = 7,092,447.03
  5. Step 5: Solve for x
    x = 7,092,447.03/3,550.40
  6. Step 6: Final answer
    x = 1,997.65

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1.5x scale

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.