Home / 5,421.52-7,481.73-3,031.67

Finding the Fourth Proportional to 5,421.52, 7,481.73 and 3,031.67

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Solution

The fourth proportional to 5,421.52, 7,481.73 and 3,031.67 is: 4,183.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.52 : 7,481.73 = 3,031.67 : x
  2. Step 2: Convert to fraction form
    5,421.52/7,481.73 = 3,031.67/x
  3. Step 3: Cross multiply
    5,421.52x = 7,481.73 × 3,031.67
  4. Step 4: Simplify right side
    5,421.52x = 22,682,136.39
  5. Step 5: Solve for x
    x = 22,682,136.39/5,421.52
  6. Step 6: Final answer
    x = 4,183.72

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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.