Home / 4,425.30-6,640.50-1,653.90

Finding the Fourth Proportional to 4,425.30, 6,640.50 and 1,653.90

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Solution

The fourth proportional to 4,425.30, 6,640.50 and 1,653.90 is: 2,481.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,425.30 : 6,640.50 = 1,653.90 : x
  2. Step 2: Convert to fraction form
    4,425.30/6,640.50 = 1,653.90/x
  3. Step 3: Cross multiply
    4,425.30x = 6,640.50 × 1,653.90
  4. Step 4: Simplify right side
    4,425.30x = 10,982,722.95
  5. Step 5: Solve for x
    x = 10,982,722.95/4,425.30
  6. Step 6: Final answer
    x = 2,481.80

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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.