Home / 7,380.80-11,071.44-2,998.16

Finding the Fourth Proportional to 7,380.80, 11,071.44 and 2,998.16

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Solution

The fourth proportional to 7,380.80, 11,071.44 and 2,998.16 is: 4,497.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,380.80 : 11,071.44 = 2,998.16 : x
  2. Step 2: Convert to fraction form
    7,380.80/11,071.44 = 2,998.16/x
  3. Step 3: Cross multiply
    7,380.80x = 11,071.44 × 2,998.16
  4. Step 4: Simplify right side
    7,380.80x = 33,193,948.55
  5. Step 5: Solve for x
    x = 33,193,948.55/7,380.80
  6. Step 6: Final answer
    x = 4,497.34

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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.