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Finding the Fourth Proportional to 2,449.86, 3,659.66 and 1,963.86

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Solution

The fourth proportional to 2,449.86, 3,659.66 and 1,963.86 is: 2,933.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,449.86 : 3,659.66 = 1,963.86 : x
  2. Step 2: Convert to fraction form
    2,449.86/3,659.66 = 1,963.86/x
  3. Step 3: Cross multiply
    2,449.86x = 3,659.66 × 1,963.86
  4. Step 4: Simplify right side
    2,449.86x = 7,187,050.07
  5. Step 5: Solve for x
    x = 7,187,050.07/2,449.86
  6. Step 6: Final answer
    x = 2,933.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.