Home / 4,221.69-5,819.75-2,958.93

Finding the Fourth Proportional to 4,221.69, 5,819.75 and 2,958.93

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Solution

The fourth proportional to 4,221.69, 5,819.75 and 2,958.93 is: 4,078.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,221.69 : 5,819.75 = 2,958.93 : x
  2. Step 2: Convert to fraction form
    4,221.69/5,819.75 = 2,958.93/x
  3. Step 3: Cross multiply
    4,221.69x = 5,819.75 × 2,958.93
  4. Step 4: Simplify right side
    4,221.69x = 17,220,229.17
  5. Step 5: Solve for x
    x = 17,220,229.17/4,221.69
  6. Step 6: Final answer
    x = 4,078.99

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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.