Home / 3,550.40-4,897.45-2,221.79

Finding the Fourth Proportional to 3,550.40, 4,897.45 and 2,221.79

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Solution

The fourth proportional to 3,550.40, 4,897.45 and 2,221.79 is: 3,064.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,550.40 : 4,897.45 = 2,221.79 : x
  2. Step 2: Convert to fraction form
    3,550.40/4,897.45 = 2,221.79/x
  3. Step 3: Cross multiply
    3,550.40x = 4,897.45 × 2,221.79
  4. Step 4: Simplify right side
    3,550.40x = 10,881,105.44
  5. Step 5: Solve for x
    x = 10,881,105.44/3,550.40
  6. Step 6: Final answer
    x = 3,064.75

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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.