Home / 4,811.72-6,640.20-2,822.31

Finding the Fourth Proportional to 4,811.72, 6,640.20 and 2,822.31

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Solution

The fourth proportional to 4,811.72, 6,640.20 and 2,822.31 is: 3,894.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,811.72 : 6,640.20 = 2,822.31 : x
  2. Step 2: Convert to fraction form
    4,811.72/6,640.20 = 2,822.31/x
  3. Step 3: Cross multiply
    4,811.72x = 6,640.20 × 2,822.31
  4. Step 4: Simplify right side
    4,811.72x = 18,740,702.86
  5. Step 5: Solve for x
    x = 18,740,702.86/4,811.72
  6. Step 6: Final answer
    x = 3,894.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.