Home / 5,249.52-7,243.20-3,990.24

Finding the Fourth Proportional to 5,249.52, 7,243.20 and 3,990.24

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Solution

The fourth proportional to 5,249.52, 7,243.20 and 3,990.24 is: 5,505.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,249.52 : 7,243.20 = 3,990.24 : x
  2. Step 2: Convert to fraction form
    5,249.52/7,243.20 = 3,990.24/x
  3. Step 3: Cross multiply
    5,249.52x = 7,243.20 × 3,990.24
  4. Step 4: Simplify right side
    5,249.52x = 28,902,106.37
  5. Step 5: Solve for x
    x = 28,902,106.37/5,249.52
  6. Step 6: Final answer
    x = 5,505.67

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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.