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Finding the Fourth Proportional to 2,659.73, 3,670.36 and 1,480.78

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Solution

The fourth proportional to 2,659.73, 3,670.36 and 1,480.78 is: 2,043.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,659.73 : 3,670.36 = 1,480.78 : x
  2. Step 2: Convert to fraction form
    2,659.73/3,670.36 = 1,480.78/x
  3. Step 3: Cross multiply
    2,659.73x = 3,670.36 × 1,480.78
  4. Step 4: Simplify right side
    2,659.73x = 5,434,995.68
  5. Step 5: Solve for x
    x = 5,434,995.68/2,659.73
  6. Step 6: Final answer
    x = 2,043.44

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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.