Home / 4,021.89-5,550.21-2,253.50

Finding the Fourth Proportional to 4,021.89, 5,550.21 and 2,253.50

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Solution

The fourth proportional to 4,021.89, 5,550.21 and 2,253.50 is: 3,109.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,021.89 : 5,550.21 = 2,253.50 : x
  2. Step 2: Convert to fraction form
    4,021.89/5,550.21 = 2,253.50/x
  3. Step 3: Cross multiply
    4,021.89x = 5,550.21 × 2,253.50
  4. Step 4: Simplify right side
    4,021.89x = 12,507,398.24
  5. Step 5: Solve for x
    x = 12,507,398.24/4,021.89
  6. Step 6: Final answer
    x = 3,109.83

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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.