Home / 7,709.22-11,560.78-2,777.14

Finding the Fourth Proportional to 7,709.22, 11,560.78 and 2,777.14

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Solution

The fourth proportional to 7,709.22, 11,560.78 and 2,777.14 is: 4,164.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,709.22 : 11,560.78 = 2,777.14 : x
  2. Step 2: Convert to fraction form
    7,709.22/11,560.78 = 2,777.14/x
  3. Step 3: Cross multiply
    7,709.22x = 11,560.78 × 2,777.14
  4. Step 4: Simplify right side
    7,709.22x = 32,105,904.57
  5. Step 5: Solve for x
    x = 32,105,904.57/7,709.22
  6. Step 6: Final answer
    x = 4,164.61

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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.