Home / 5,172.59-7,137.95-2,814.73

Finding the Fourth Proportional to 5,172.59, 7,137.95 and 2,814.73

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Solution

The fourth proportional to 5,172.59, 7,137.95 and 2,814.73 is: 3,884.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,172.59 : 7,137.95 = 2,814.73 : x
  2. Step 2: Convert to fraction form
    5,172.59/7,137.95 = 2,814.73/x
  3. Step 3: Cross multiply
    5,172.59x = 7,137.95 × 2,814.73
  4. Step 4: Simplify right side
    5,172.59x = 20,091,370.08
  5. Step 5: Solve for x
    x = 20,091,370.08/5,172.59
  6. Step 6: Final answer
    x = 3,884.20

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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.