Home / 4,078.74-6,117.30-1,997.85

Finding the Fourth Proportional to 4,078.74, 6,117.30 and 1,997.85

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Solution

The fourth proportional to 4,078.74, 6,117.30 and 1,997.85 is: 2,996.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.74 : 6,117.30 = 1,997.85 : x
  2. Step 2: Convert to fraction form
    4,078.74/6,117.30 = 1,997.85/x
  3. Step 3: Cross multiply
    4,078.74x = 6,117.30 × 1,997.85
  4. Step 4: Simplify right side
    4,078.74x = 12,221,447.81
  5. Step 5: Solve for x
    x = 12,221,447.81/4,078.74
  6. Step 6: Final answer
    x = 2,996.38

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1.5x scale

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.