Home / 7,769.04-11,650.86-2,220.88

Finding the Fourth Proportional to 7,769.04, 11,650.86 and 2,220.88

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Solution

The fourth proportional to 7,769.04, 11,650.86 and 2,220.88 is: 3,330.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,769.04 : 11,650.86 = 2,220.88 : x
  2. Step 2: Convert to fraction form
    7,769.04/11,650.86 = 2,220.88/x
  3. Step 3: Cross multiply
    7,769.04x = 11,650.86 × 2,220.88
  4. Step 4: Simplify right side
    7,769.04x = 25,875,161.96
  5. Step 5: Solve for x
    x = 25,875,161.96/7,769.04
  6. Step 6: Final answer
    x = 3,330.55

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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.