Home / 6,143.91-8,479.60-3,626.63

Finding the Fourth Proportional to 6,143.91, 8,479.60 and 3,626.63

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Solution

The fourth proportional to 6,143.91, 8,479.60 and 3,626.63 is: 5,005.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,143.91 : 8,479.60 = 3,626.63 : x
  2. Step 2: Convert to fraction form
    6,143.91/8,479.60 = 3,626.63/x
  3. Step 3: Cross multiply
    6,143.91x = 8,479.60 × 3,626.63
  4. Step 4: Simplify right side
    6,143.91x = 30,752,371.75
  5. Step 5: Solve for x
    x = 30,752,371.75/6,143.91
  6. Step 6: Final answer
    x = 5,005.34

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.