Home / 7,769.40-11,655.92-2,222.58

Finding the Fourth Proportional to 7,769.40, 11,655.92 and 2,222.58

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Solution

The fourth proportional to 7,769.40, 11,655.92 and 2,222.58 is: 3,334.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,769.40 : 11,655.92 = 2,222.58 : x
  2. Step 2: Convert to fraction form
    7,769.40/11,655.92 = 2,222.58/x
  3. Step 3: Cross multiply
    7,769.40x = 11,655.92 × 2,222.58
  4. Step 4: Simplify right side
    7,769.40x = 25,906,214.67
  5. Step 5: Solve for x
    x = 25,906,214.67/7,769.40
  6. Step 6: Final answer
    x = 3,334.39

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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.