Home / 4,879.90-7,319.85-2,813.41

Finding the Fourth Proportional to 4,879.90, 7,319.85 and 2,813.41

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Solution

The fourth proportional to 4,879.90, 7,319.85 and 2,813.41 is: 4,220.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,879.90 : 7,319.85 = 2,813.41 : x
  2. Step 2: Convert to fraction form
    4,879.90/7,319.85 = 2,813.41/x
  3. Step 3: Cross multiply
    4,879.90x = 7,319.85 × 2,813.41
  4. Step 4: Simplify right side
    4,879.90x = 20,593,702.59
  5. Step 5: Solve for x
    x = 20,593,702.59/4,879.90
  6. Step 6: Final answer
    x = 4,220.11

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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.