Home / 5,028.65-6,939.23-2,790.39

Finding the Fourth Proportional to 5,028.65, 6,939.23 and 2,790.39

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Solution

The fourth proportional to 5,028.65, 6,939.23 and 2,790.39 is: 3,850.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,028.65 : 6,939.23 = 2,790.39 : x
  2. Step 2: Convert to fraction form
    5,028.65/6,939.23 = 2,790.39/x
  3. Step 3: Cross multiply
    5,028.65x = 6,939.23 × 2,790.39
  4. Step 4: Simplify right side
    5,028.65x = 19,363,158.00
  5. Step 5: Solve for x
    x = 19,363,158.00/5,028.65
  6. Step 6: Final answer
    x = 3,850.57

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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.