Home / 4,917.70-6,786.54-2,679.70

Finding the Fourth Proportional to 4,917.70, 6,786.54 and 2,679.70

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Solution

The fourth proportional to 4,917.70, 6,786.54 and 2,679.70 is: 3,698.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,917.70 : 6,786.54 = 2,679.70 : x
  2. Step 2: Convert to fraction form
    4,917.70/6,786.54 = 2,679.70/x
  3. Step 3: Cross multiply
    4,917.70x = 6,786.54 × 2,679.70
  4. Step 4: Simplify right side
    4,917.70x = 18,185,891.24
  5. Step 5: Solve for x
    x = 18,185,891.24/4,917.70
  6. Step 6: Final answer
    x = 3,698.05

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1.5x scale

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.