Home / 2,553.75-3,831.70-1,630.35

Finding the Fourth Proportional to 2,553.75, 3,831.70 and 1,630.35

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Solution

The fourth proportional to 2,553.75, 3,831.70 and 1,630.35 is: 2,446.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,553.75 : 3,831.70 = 1,630.35 : x
  2. Step 2: Convert to fraction form
    2,553.75/3,831.70 = 1,630.35/x
  3. Step 3: Cross multiply
    2,553.75x = 3,831.70 × 1,630.35
  4. Step 4: Simplify right side
    2,553.75x = 6,246,988.86
  5. Step 5: Solve for x
    x = 6,246,988.86/2,553.75
  6. Step 6: Final answer
    x = 2,446.21

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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.