Home / 2,681.14-4,021.46-1,640.61

Finding the Fourth Proportional to 2,681.14, 4,021.46 and 1,640.61

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Solution

The fourth proportional to 2,681.14, 4,021.46 and 1,640.61 is: 2,460.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,681.14 : 4,021.46 = 1,640.61 : x
  2. Step 2: Convert to fraction form
    2,681.14/4,021.46 = 1,640.61/x
  3. Step 3: Cross multiply
    2,681.14x = 4,021.46 × 1,640.61
  4. Step 4: Simplify right side
    2,681.14x = 6,597,650.57
  5. Step 5: Solve for x
    x = 6,597,650.57/2,681.14
  6. Step 6: Final answer
    x = 2,460.76

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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.