Home / 5,028.06-6,939.20-2,790.02

Finding the Fourth Proportional to 5,028.06, 6,939.20 and 2,790.02

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Solution

The fourth proportional to 5,028.06, 6,939.20 and 2,790.02 is: 3,850.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,028.06 : 6,939.20 = 2,790.02 : x
  2. Step 2: Convert to fraction form
    5,028.06/6,939.20 = 2,790.02/x
  3. Step 3: Cross multiply
    5,028.06x = 6,939.20 × 2,790.02
  4. Step 4: Simplify right side
    5,028.06x = 19,360,506.78
  5. Step 5: Solve for x
    x = 19,360,506.78/5,028.06
  6. Step 6: Final answer
    x = 3,850.49

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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.