Home / 3,550.50-4,902.12-2,155.68

Finding the Fourth Proportional to 3,550.50, 4,902.12 and 2,155.68

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Solution

The fourth proportional to 3,550.50, 4,902.12 and 2,155.68 is: 2,976.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,550.50 : 4,902.12 = 2,155.68 : x
  2. Step 2: Convert to fraction form
    3,550.50/4,902.12 = 2,155.68/x
  3. Step 3: Cross multiply
    3,550.50x = 4,902.12 × 2,155.68
  4. Step 4: Simplify right side
    3,550.50x = 10,567,402.04
  5. Step 5: Solve for x
    x = 10,567,402.04/3,550.50
  6. Step 6: Final answer
    x = 2,976.31

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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.