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Finding the Fourth Proportional to 2,908.56, 4,013.68 and 1,649.68

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Solution

The fourth proportional to 2,908.56, 4,013.68 and 1,649.68 is: 2,276.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,908.56 : 4,013.68 = 1,649.68 : x
  2. Step 2: Convert to fraction form
    2,908.56/4,013.68 = 1,649.68/x
  3. Step 3: Cross multiply
    2,908.56x = 4,013.68 × 1,649.68
  4. Step 4: Simplify right side
    2,908.56x = 6,621,287.62
  5. Step 5: Solve for x
    x = 6,621,287.62/2,908.56
  6. Step 6: Final answer
    x = 2,276.48

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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.