Home / 5,105.18-7,651.38-2,180.06

Finding the Fourth Proportional to 5,105.18, 7,651.38 and 2,180.06

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Solution

The fourth proportional to 5,105.18, 7,651.38 and 2,180.06 is: 3,267.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,105.18 : 7,651.38 = 2,180.06 : x
  2. Step 2: Convert to fraction form
    5,105.18/7,651.38 = 2,180.06/x
  3. Step 3: Cross multiply
    5,105.18x = 7,651.38 × 2,180.06
  4. Step 4: Simplify right side
    5,105.18x = 16,680,467.48
  5. Step 5: Solve for x
    x = 16,680,467.48/5,105.18
  6. Step 6: Final answer
    x = 3,267.36

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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.