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Finding the Fourth Proportional to 2,659.75, 3,670.38 and 1,480.86

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Solution

The fourth proportional to 2,659.75, 3,670.38 and 1,480.86 is: 2,043.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,659.75 : 3,670.38 = 1,480.86 : x
  2. Step 2: Convert to fraction form
    2,659.75/3,670.38 = 1,480.86/x
  3. Step 3: Cross multiply
    2,659.75x = 3,670.38 × 1,480.86
  4. Step 4: Simplify right side
    2,659.75x = 5,435,318.93
  5. Step 5: Solve for x
    x = 5,435,318.93/2,659.75
  6. Step 6: Final answer
    x = 2,043.55

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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.