Home / 5,028.92-6,939.78-2,790.76

Finding the Fourth Proportional to 5,028.92, 6,939.78 and 2,790.76

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Solution

The fourth proportional to 5,028.92, 6,939.78 and 2,790.76 is: 3,851.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,028.92 : 6,939.78 = 2,790.76 : x
  2. Step 2: Convert to fraction form
    5,028.92/6,939.78 = 2,790.76/x
  3. Step 3: Cross multiply
    5,028.92x = 6,939.78 × 2,790.76
  4. Step 4: Simplify right side
    5,028.92x = 19,367,243.08
  5. Step 5: Solve for x
    x = 19,367,243.08/5,028.92
  6. Step 6: Final answer
    x = 3,851.18

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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.