Home / 7,729.05-11,586.66-3,778.07

Finding the Fourth Proportional to 7,729.05, 11,586.66 and 3,778.07

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Solution

The fourth proportional to 7,729.05, 11,586.66 and 3,778.07 is: 5,663.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,729.05 : 11,586.66 = 3,778.07 : x
  2. Step 2: Convert to fraction form
    7,729.05/11,586.66 = 3,778.07/x
  3. Step 3: Cross multiply
    7,729.05x = 11,586.66 × 3,778.07
  4. Step 4: Simplify right side
    7,729.05x = 43,775,212.55
  5. Step 5: Solve for x
    x = 43,775,212.55/7,729.05
  6. Step 6: Final answer
    x = 5,663.72

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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.