Home / 5,171.98-7,137.22-2,814.13

Finding the Fourth Proportional to 5,171.98, 7,137.22 and 2,814.13

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Solution

The fourth proportional to 5,171.98, 7,137.22 and 2,814.13 is: 3,883.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,171.98 : 7,137.22 = 2,814.13 : x
  2. Step 2: Convert to fraction form
    5,171.98/7,137.22 = 2,814.13/x
  3. Step 3: Cross multiply
    5,171.98x = 7,137.22 × 2,814.13
  4. Step 4: Simplify right side
    5,171.98x = 20,085,064.92
  5. Step 5: Solve for x
    x = 20,085,064.92/5,171.98
  6. Step 6: Final answer
    x = 3,883.44

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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.