Home / 4,917.09-6,785.41-2,678.92

Finding the Fourth Proportional to 4,917.09, 6,785.41 and 2,678.92

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Solution

The fourth proportional to 4,917.09, 6,785.41 and 2,678.92 is: 3,696.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,917.09 : 6,785.41 = 2,678.92 : x
  2. Step 2: Convert to fraction form
    4,917.09/6,785.41 = 2,678.92/x
  3. Step 3: Cross multiply
    4,917.09x = 6,785.41 × 2,678.92
  4. Step 4: Simplify right side
    4,917.09x = 18,177,557.16
  5. Step 5: Solve for x
    x = 18,177,557.16/4,917.09
  6. Step 6: Final answer
    x = 3,696.81

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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.