Home / 3,172.14-4,754.48-2,389.61

Finding the Fourth Proportional to 3,172.14, 4,754.48 and 2,389.61

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Solution

The fourth proportional to 3,172.14, 4,754.48 and 2,389.61 is: 3,581.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,172.14 : 4,754.48 = 2,389.61 : x
  2. Step 2: Convert to fraction form
    3,172.14/4,754.48 = 2,389.61/x
  3. Step 3: Cross multiply
    3,172.14x = 4,754.48 × 2,389.61
  4. Step 4: Simplify right side
    3,172.14x = 11,361,352.89
  5. Step 5: Solve for x
    x = 11,361,352.89/3,172.14
  6. Step 6: Final answer
    x = 3,581.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.