Home / 5,028.98-6,940.01-2,790.90

Finding the Fourth Proportional to 5,028.98, 6,940.01 and 2,790.90

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Solution

The fourth proportional to 5,028.98, 6,940.01 and 2,790.90 is: 3,851.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,028.98 : 6,940.01 = 2,790.90 : x
  2. Step 2: Convert to fraction form
    5,028.98/6,940.01 = 2,790.90/x
  3. Step 3: Cross multiply
    5,028.98x = 6,940.01 × 2,790.90
  4. Step 4: Simplify right side
    5,028.98x = 19,368,873.91
  5. Step 5: Solve for x
    x = 19,368,873.91/5,028.98
  6. Step 6: Final answer
    x = 3,851.45

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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.