Home / 7,831.33-11,733.78-3,877.31

Finding the Fourth Proportional to 7,831.33, 11,733.78 and 3,877.31

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Solution

The fourth proportional to 7,831.33, 11,733.78 and 3,877.31 is: 5,809.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,831.33 : 11,733.78 = 3,877.31 : x
  2. Step 2: Convert to fraction form
    7,831.33/11,733.78 = 3,877.31/x
  3. Step 3: Cross multiply
    7,831.33x = 11,733.78 × 3,877.31
  4. Step 4: Simplify right side
    7,831.33x = 45,495,502.53
  5. Step 5: Solve for x
    x = 45,495,502.53/7,831.33
  6. Step 6: Final answer
    x = 5,809.42

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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.