Home / 2,619.92-3,929.84-1,523.70

Finding the Fourth Proportional to 2,619.92, 3,929.84 and 1,523.70

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Solution

The fourth proportional to 2,619.92, 3,929.84 and 1,523.70 is: 2,285.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,619.92 : 3,929.84 = 1,523.70 : x
  2. Step 2: Convert to fraction form
    2,619.92/3,929.84 = 1,523.70/x
  3. Step 3: Cross multiply
    2,619.92x = 3,929.84 × 1,523.70
  4. Step 4: Simplify right side
    2,619.92x = 5,987,897.21
  5. Step 5: Solve for x
    x = 5,987,897.21/2,619.92
  6. Step 6: Final answer
    x = 2,285.53

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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.