Home / 2,976.05-4,106.98-1,649.78

Finding the Fourth Proportional to 2,976.05, 4,106.98 and 1,649.78

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Solution

The fourth proportional to 2,976.05, 4,106.98 and 1,649.78 is: 2,276.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,976.05 : 4,106.98 = 1,649.78 : x
  2. Step 2: Convert to fraction form
    2,976.05/4,106.98 = 1,649.78/x
  3. Step 3: Cross multiply
    2,976.05x = 4,106.98 × 1,649.78
  4. Step 4: Simplify right side
    2,976.05x = 6,775,584.68
  5. Step 5: Solve for x
    x = 6,775,584.68/2,976.05
  6. Step 6: Final answer
    x = 2,276.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.