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Finding the Fourth Proportional to 3,749.43, 5,624.34 and 976.11

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Solution

The fourth proportional to 3,749.43, 5,624.34 and 976.11 is: 1,464.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,749.43 : 5,624.34 = 976.11 : x
  2. Step 2: Convert to fraction form
    3,749.43/5,624.34 = 976.11/x
  3. Step 3: Cross multiply
    3,749.43x = 5,624.34 × 976.11
  4. Step 4: Simplify right side
    3,749.43x = 5,489,974.52
  5. Step 5: Solve for x
    x = 5,489,974.52/3,749.43
  6. Step 6: Final answer
    x = 1,464.22

Related Problems

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Half 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.