Home / 7,121.45-10,682.31-2,446.83

Finding the Fourth Proportional to 7,121.45, 10,682.31 and 2,446.83

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Solution

The fourth proportional to 7,121.45, 10,682.31 and 2,446.83 is: 3,670.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,121.45 : 10,682.31 = 2,446.83 : x
  2. Step 2: Convert to fraction form
    7,121.45/10,682.31 = 2,446.83/x
  3. Step 3: Cross multiply
    7,121.45x = 10,682.31 × 2,446.83
  4. Step 4: Simplify right side
    7,121.45x = 26,137,796.58
  5. Step 5: Solve for x
    x = 26,137,796.58/7,121.45
  6. Step 6: Final answer
    x = 3,670.29

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.