Home / 7,221.34-10,824.56-2,777.80

Finding the Fourth Proportional to 7,221.34, 10,824.56 and 2,777.80

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Solution

The fourth proportional to 7,221.34, 10,824.56 and 2,777.80 is: 4,163.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,221.34 : 10,824.56 = 2,777.80 : x
  2. Step 2: Convert to fraction form
    7,221.34/10,824.56 = 2,777.80/x
  3. Step 3: Cross multiply
    7,221.34x = 10,824.56 × 2,777.80
  4. Step 4: Simplify right side
    7,221.34x = 30,068,462.77
  5. Step 5: Solve for x
    x = 30,068,462.77/7,221.34
  6. Step 6: Final answer
    x = 4,163.83

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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.