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Finding the Fourth Proportional to 2,983.86, 4,475.79 and 1,759.80

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Solution

The fourth proportional to 2,983.86, 4,475.79 and 1,759.80 is: 2,639.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,983.86 : 4,475.79 = 1,759.80 : x
  2. Step 2: Convert to fraction form
    2,983.86/4,475.79 = 1,759.80/x
  3. Step 3: Cross multiply
    2,983.86x = 4,475.79 × 1,759.80
  4. Step 4: Simplify right side
    2,983.86x = 7,876,495.24
  5. Step 5: Solve for x
    x = 7,876,495.24/2,983.86
  6. Step 6: Final answer
    x = 2,639.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.