Home / 5,172.02-7,137.30-2,814.11

Finding the Fourth Proportional to 5,172.02, 7,137.30 and 2,814.11

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Solution

The fourth proportional to 5,172.02, 7,137.30 and 2,814.11 is: 3,883.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,172.02 : 7,137.30 = 2,814.11 : x
  2. Step 2: Convert to fraction form
    5,172.02/7,137.30 = 2,814.11/x
  3. Step 3: Cross multiply
    5,172.02x = 7,137.30 × 2,814.11
  4. Step 4: Simplify right side
    5,172.02x = 20,085,147.30
  5. Step 5: Solve for x
    x = 20,085,147.30/5,172.02
  6. Step 6: Final answer
    x = 3,883.42

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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.