Home / 4,838.20-7,262.70-2,645.80

Finding the Fourth Proportional to 4,838.20, 7,262.70 and 2,645.80

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Solution

The fourth proportional to 4,838.20, 7,262.70 and 2,645.80 is: 3,971.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,838.20 : 7,262.70 = 2,645.80 : x
  2. Step 2: Convert to fraction form
    4,838.20/7,262.70 = 2,645.80/x
  3. Step 3: Cross multiply
    4,838.20x = 7,262.70 × 2,645.80
  4. Step 4: Simplify right side
    4,838.20x = 19,215,651.66
  5. Step 5: Solve for x
    x = 19,215,651.66/4,838.20
  6. Step 6: Final answer
    x = 3,971.65

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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.