Home / 6,690.72-10,028.56-3,177.85

Finding the Fourth Proportional to 6,690.72, 10,028.56 and 3,177.85

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Solution

The fourth proportional to 6,690.72, 10,028.56 and 3,177.85 is: 4,763.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,690.72 : 10,028.56 = 3,177.85 : x
  2. Step 2: Convert to fraction form
    6,690.72/10,028.56 = 3,177.85/x
  3. Step 3: Cross multiply
    6,690.72x = 10,028.56 × 3,177.85
  4. Step 4: Simplify right side
    6,690.72x = 31,869,288.29
  5. Step 5: Solve for x
    x = 31,869,288.29/6,690.72
  6. Step 6: Final answer
    x = 4,763.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.