Home / 7,498.72-11,249.28-2,820.34

Finding the Fourth Proportional to 7,498.72, 11,249.28 and 2,820.34

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Solution

The fourth proportional to 7,498.72, 11,249.28 and 2,820.34 is: 4,230.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,498.72 : 11,249.28 = 2,820.34 : x
  2. Step 2: Convert to fraction form
    7,498.72/11,249.28 = 2,820.34/x
  3. Step 3: Cross multiply
    7,498.72x = 11,249.28 × 2,820.34
  4. Step 4: Simplify right side
    7,498.72x = 31,726,794.36
  5. Step 5: Solve for x
    x = 31,726,794.36/7,498.72
  6. Step 6: Final answer
    x = 4,230.96

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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.