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Finding the Fourth Proportional to 7,550.60, 11,328.60 and 3,169.40

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Solution

The fourth proportional to 7,550.60, 11,328.60 and 3,169.40 is: 4,755.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,550.60 : 11,328.60 = 3,169.40 : x
  2. Step 2: Convert to fraction form
    7,550.60/11,328.60 = 3,169.40/x
  3. Step 3: Cross multiply
    7,550.60x = 11,328.60 × 3,169.40
  4. Step 4: Simplify right side
    7,550.60x = 35,904,864.84
  5. Step 5: Solve for x
    x = 35,904,864.84/7,550.60
  6. Step 6: Final answer
    x = 4,755.23

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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.