Home / 5,272.76-7,911.96-3,423.44

Finding the Fourth Proportional to 5,272.76, 7,911.96 and 3,423.44

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Solution

The fourth proportional to 5,272.76, 7,911.96 and 3,423.44 is: 5,136.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,272.76 : 7,911.96 = 3,423.44 : x
  2. Step 2: Convert to fraction form
    5,272.76/7,911.96 = 3,423.44/x
  3. Step 3: Cross multiply
    5,272.76x = 7,911.96 × 3,423.44
  4. Step 4: Simplify right side
    5,272.76x = 27,086,120.34
  5. Step 5: Solve for x
    x = 27,086,120.34/5,272.76
  6. Step 6: Final answer
    x = 5,136.99

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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.