Home / 6,141.72-9,210.12-2,245.20

Finding the Fourth Proportional to 6,141.72, 9,210.12 and 2,245.20

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Solution

The fourth proportional to 6,141.72, 9,210.12 and 2,245.20 is: 3,366.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,141.72 : 9,210.12 = 2,245.20 : x
  2. Step 2: Convert to fraction form
    6,141.72/9,210.12 = 2,245.20/x
  3. Step 3: Cross multiply
    6,141.72x = 9,210.12 × 2,245.20
  4. Step 4: Simplify right side
    6,141.72x = 20,678,561.42
  5. Step 5: Solve for x
    x = 20,678,561.42/6,141.72
  6. Step 6: Final answer
    x = 3,366.90

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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.