Home / 6,151.30-9,224.96-1,990.42

Finding the Fourth Proportional to 6,151.30, 9,224.96 and 1,990.42

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Solution

The fourth proportional to 6,151.30, 9,224.96 and 1,990.42 is: 2,984.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,151.30 : 9,224.96 = 1,990.42 : x
  2. Step 2: Convert to fraction form
    6,151.30/9,224.96 = 1,990.42/x
  3. Step 3: Cross multiply
    6,151.30x = 9,224.96 × 1,990.42
  4. Step 4: Simplify right side
    6,151.30x = 18,361,544.88
  5. Step 5: Solve for x
    x = 18,361,544.88/6,151.30
  6. Step 6: Final answer
    x = 2,984.99

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Double scale
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Similar ratio
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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.