Home / 6,838.10-10,257.15-2,221.10

Finding the Fourth Proportional to 6,838.10, 10,257.15 and 2,221.10

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Solution

The fourth proportional to 6,838.10, 10,257.15 and 2,221.10 is: 3,331.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,838.10 : 10,257.15 = 2,221.10 : x
  2. Step 2: Convert to fraction form
    6,838.10/10,257.15 = 2,221.10/x
  3. Step 3: Cross multiply
    6,838.10x = 10,257.15 × 2,221.10
  4. Step 4: Simplify right side
    6,838.10x = 22,782,155.87
  5. Step 5: Solve for x
    x = 22,782,155.87/6,838.10
  6. Step 6: Final answer
    x = 3,331.65

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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.