Home / 5,422.70-8,127.68-2,609.84

Finding the Fourth Proportional to 5,422.70, 8,127.68 and 2,609.84

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Solution

The fourth proportional to 5,422.70, 8,127.68 and 2,609.84 is: 3,911.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,422.70 : 8,127.68 = 2,609.84 : x
  2. Step 2: Convert to fraction form
    5,422.70/8,127.68 = 2,609.84/x
  3. Step 3: Cross multiply
    5,422.70x = 8,127.68 × 2,609.84
  4. Step 4: Simplify right side
    5,422.70x = 21,211,944.37
  5. Step 5: Solve for x
    x = 21,211,944.37/5,422.70
  6. Step 6: Final answer
    x = 3,911.69

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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.