Home / 5,243.68-7,236.48-3,005.56

Finding the Fourth Proportional to 5,243.68, 7,236.48 and 3,005.56

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Solution

The fourth proportional to 5,243.68, 7,236.48 and 3,005.56 is: 4,147.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,243.68 : 7,236.48 = 3,005.56 : x
  2. Step 2: Convert to fraction form
    5,243.68/7,236.48 = 3,005.56/x
  3. Step 3: Cross multiply
    5,243.68x = 7,236.48 × 3,005.56
  4. Step 4: Simplify right side
    5,243.68x = 21,749,674.83
  5. Step 5: Solve for x
    x = 21,749,674.83/5,243.68
  6. Step 6: Final answer
    x = 4,147.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.