Home / 2,553.30-3,831.60-1,384.11

Finding the Fourth Proportional to 2,553.30, 3,831.60 and 1,384.11

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Solution

The fourth proportional to 2,553.30, 3,831.60 and 1,384.11 is: 2,077.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,553.30 : 3,831.60 = 1,384.11 : x
  2. Step 2: Convert to fraction form
    2,553.30/3,831.60 = 1,384.11/x
  3. Step 3: Cross multiply
    2,553.30x = 3,831.60 × 1,384.11
  4. Step 4: Simplify right side
    2,553.30x = 5,303,355.88
  5. Step 5: Solve for x
    x = 5,303,355.88/2,553.30
  6. Step 6: Final answer
    x = 2,077.06

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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.