Home / 2,553.63-3,831.81-1,384.49

Finding the Fourth Proportional to 2,553.63, 3,831.81 and 1,384.49

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Solution

The fourth proportional to 2,553.63, 3,831.81 and 1,384.49 is: 2,077.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,553.63 : 3,831.81 = 1,384.49 : x
  2. Step 2: Convert to fraction form
    2,553.63/3,831.81 = 1,384.49/x
  3. Step 3: Cross multiply
    2,553.63x = 3,831.81 × 1,384.49
  4. Step 4: Simplify right side
    2,553.63x = 5,305,107.01
  5. Step 5: Solve for x
    x = 5,305,107.01/2,553.63
  6. Step 6: Final answer
    x = 2,077.48

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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.