Home / 5,189.68-7,780.14-2,414.92

Finding the Fourth Proportional to 5,189.68, 7,780.14 and 2,414.92

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Solution

The fourth proportional to 5,189.68, 7,780.14 and 2,414.92 is: 3,620.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,189.68 : 7,780.14 = 2,414.92 : x
  2. Step 2: Convert to fraction form
    5,189.68/7,780.14 = 2,414.92/x
  3. Step 3: Cross multiply
    5,189.68x = 7,780.14 × 2,414.92
  4. Step 4: Simplify right side
    5,189.68x = 18,788,415.69
  5. Step 5: Solve for x
    x = 18,788,415.69/5,189.68
  6. Step 6: Final answer
    x = 3,620.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.