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Finding the Fourth Proportional to 4,159.99, 6,240.71 and 2,080.09

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Solution

The fourth proportional to 4,159.99, 6,240.71 and 2,080.09 is: 3,120.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,159.99 : 6,240.71 = 2,080.09 : x
  2. Step 2: Convert to fraction form
    4,159.99/6,240.71 = 2,080.09/x
  3. Step 3: Cross multiply
    4,159.99x = 6,240.71 × 2,080.09
  4. Step 4: Simplify right side
    4,159.99x = 12,981,238.46
  5. Step 5: Solve for x
    x = 12,981,238.46/4,159.99
  6. Step 6: Final answer
    x = 3,120.50

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Half scale
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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.