Home / 5,118.49-7,677.42-1,831.42

Finding the Fourth Proportional to 5,118.49, 7,677.42 and 1,831.42

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Solution

The fourth proportional to 5,118.49, 7,677.42 and 1,831.42 is: 2,747.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,118.49 : 7,677.42 = 1,831.42 : x
  2. Step 2: Convert to fraction form
    5,118.49/7,677.42 = 1,831.42/x
  3. Step 3: Cross multiply
    5,118.49x = 7,677.42 × 1,831.42
  4. Step 4: Simplify right side
    5,118.49x = 14,060,580.54
  5. Step 5: Solve for x
    x = 14,060,580.54/5,118.49
  6. Step 6: Final answer
    x = 2,747.02

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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.