Home / 5,218.76-7,200.66-3,819.08

Finding the Fourth Proportional to 5,218.76, 7,200.66 and 3,819.08

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Solution

The fourth proportional to 5,218.76, 7,200.66 and 3,819.08 is: 5,269.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,218.76 : 7,200.66 = 3,819.08 : x
  2. Step 2: Convert to fraction form
    5,218.76/7,200.66 = 3,819.08/x
  3. Step 3: Cross multiply
    5,218.76x = 7,200.66 × 3,819.08
  4. Step 4: Simplify right side
    5,218.76x = 27,499,896.59
  5. Step 5: Solve for x
    x = 27,499,896.59/5,218.76
  6. Step 6: Final answer
    x = 5,269.43

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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.