Home / 5,172.08-7,137.52-2,814.24

Finding the Fourth Proportional to 5,172.08, 7,137.52 and 2,814.24

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Solution

The fourth proportional to 5,172.08, 7,137.52 and 2,814.24 is: 3,883.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,172.08 : 7,137.52 = 2,814.24 : x
  2. Step 2: Convert to fraction form
    5,172.08/7,137.52 = 2,814.24/x
  3. Step 3: Cross multiply
    5,172.08x = 7,137.52 × 2,814.24
  4. Step 4: Simplify right side
    5,172.08x = 20,086,694.28
  5. Step 5: Solve for x
    x = 20,086,694.28/5,172.08
  6. Step 6: Final answer
    x = 3,883.68

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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.