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Finding the Fourth Proportional to 6,145.92, 9,215.16 and 2,245.74

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Solution

The fourth proportional to 6,145.92, 9,215.16 and 2,245.74 is: 3,367.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,145.92 : 9,215.16 = 2,245.74 : x
  2. Step 2: Convert to fraction form
    6,145.92/9,215.16 = 2,245.74/x
  3. Step 3: Cross multiply
    6,145.92x = 9,215.16 × 2,245.74
  4. Step 4: Simplify right side
    6,145.92x = 20,694,853.42
  5. Step 5: Solve for x
    x = 20,694,853.42/6,145.92
  6. Step 6: Final answer
    x = 3,367.25

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Half scale
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Double scale
Find fourth proportional to 6,146.92, 9,216.66 and 2,246.74
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.