Home / 2,982.86-4,115.16-1,723.68

Finding the Fourth Proportional to 2,982.86, 4,115.16 and 1,723.68

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Solution

The fourth proportional to 2,982.86, 4,115.16 and 1,723.68 is: 2,377.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,982.86 : 4,115.16 = 1,723.68 : x
  2. Step 2: Convert to fraction form
    2,982.86/4,115.16 = 1,723.68/x
  3. Step 3: Cross multiply
    2,982.86x = 4,115.16 × 1,723.68
  4. Step 4: Simplify right side
    2,982.86x = 7,093,204.39
  5. Step 5: Solve for x
    x = 7,093,204.39/2,982.86
  6. Step 6: Final answer
    x = 2,377.99

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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.