Home / 6,690.28-10,028.84-3,174.12

Finding the Fourth Proportional to 6,690.28, 10,028.84 and 3,174.12

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Solution

The fourth proportional to 6,690.28, 10,028.84 and 3,174.12 is: 4,758.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,690.28 : 10,028.84 = 3,174.12 : x
  2. Step 2: Convert to fraction form
    6,690.28/10,028.84 = 3,174.12/x
  3. Step 3: Cross multiply
    6,690.28x = 10,028.84 × 3,174.12
  4. Step 4: Simplify right side
    6,690.28x = 31,832,741.62
  5. Step 5: Solve for x
    x = 31,832,741.62/6,690.28
  6. Step 6: Final answer
    x = 4,758.06

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1.5x scale

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.