Home / 3,079.61-4,249.86-1,663.30

Finding the Fourth Proportional to 3,079.61, 4,249.86 and 1,663.30

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Solution

The fourth proportional to 3,079.61, 4,249.86 and 1,663.30 is: 2,295.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,079.61 : 4,249.86 = 1,663.30 : x
  2. Step 2: Convert to fraction form
    3,079.61/4,249.86 = 1,663.30/x
  3. Step 3: Cross multiply
    3,079.61x = 4,249.86 × 1,663.30
  4. Step 4: Simplify right side
    3,079.61x = 7,068,778.28
  5. Step 5: Solve for x
    x = 7,068,778.28/3,079.61
  6. Step 6: Final answer
    x = 2,295.35

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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.