Home / 5,172.48-7,136.91-2,934.18

Finding the Fourth Proportional to 5,172.48, 7,136.91 and 2,934.18

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Solution

The fourth proportional to 5,172.48, 7,136.91 and 2,934.18 is: 4,048.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,172.48 : 7,136.91 = 2,934.18 : x
  2. Step 2: Convert to fraction form
    5,172.48/7,136.91 = 2,934.18/x
  3. Step 3: Cross multiply
    5,172.48x = 7,136.91 × 2,934.18
  4. Step 4: Simplify right side
    5,172.48x = 20,940,978.58
  5. Step 5: Solve for x
    x = 20,940,978.58/5,172.48
  6. Step 6: Final answer
    x = 4,048.54

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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.