Home / 7,790.36-11,685.65-2,243.80

Finding the Fourth Proportional to 7,790.36, 11,685.65 and 2,243.80

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Solution

The fourth proportional to 7,790.36, 11,685.65 and 2,243.80 is: 3,365.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,790.36 : 11,685.65 = 2,243.80 : x
  2. Step 2: Convert to fraction form
    7,790.36/11,685.65 = 2,243.80/x
  3. Step 3: Cross multiply
    7,790.36x = 11,685.65 × 2,243.80
  4. Step 4: Simplify right side
    7,790.36x = 26,220,221.04
  5. Step 5: Solve for x
    x = 26,220,221.04/7,790.36
  6. Step 6: Final answer
    x = 3,365.73

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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.