Home / 7,481.10-11,220.30-4,702.80

Finding the Fourth Proportional to 7,481.10, 11,220.30 and 4,702.80

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Solution

The fourth proportional to 7,481.10, 11,220.30 and 4,702.80 is: 7,053.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,481.10 : 11,220.30 = 4,702.80 : x
  2. Step 2: Convert to fraction form
    7,481.10/11,220.30 = 4,702.80/x
  3. Step 3: Cross multiply
    7,481.10x = 11,220.30 × 4,702.80
  4. Step 4: Simplify right side
    7,481.10x = 52,766,826.84
  5. Step 5: Solve for x
    x = 52,766,826.84/7,481.10
  6. Step 6: Final answer
    x = 7,053.35

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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.