Home / 2,255.92-3,384.69-1,389.22

Finding the Fourth Proportional to 2,255.92, 3,384.69 and 1,389.22

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Solution

The fourth proportional to 2,255.92, 3,384.69 and 1,389.22 is: 2,084.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,255.92 : 3,384.69 = 1,389.22 : x
  2. Step 2: Convert to fraction form
    2,255.92/3,384.69 = 1,389.22/x
  3. Step 3: Cross multiply
    2,255.92x = 3,384.69 × 1,389.22
  4. Step 4: Simplify right side
    2,255.92x = 4,702,079.04
  5. Step 5: Solve for x
    x = 4,702,079.04/2,255.92
  6. Step 6: Final answer
    x = 2,084.33

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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.