Home / 3,814.40-5,721.60-3,749.60

Finding the Fourth Proportional to 3,814.40, 5,721.60 and 3,749.60

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Solution

The fourth proportional to 3,814.40, 5,721.60 and 3,749.60 is: 5,624.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,814.40 : 5,721.60 = 3,749.60 : x
  2. Step 2: Convert to fraction form
    3,814.40/5,721.60 = 3,749.60/x
  3. Step 3: Cross multiply
    3,814.40x = 5,721.60 × 3,749.60
  4. Step 4: Simplify right side
    3,814.40x = 21,453,711.36
  5. Step 5: Solve for x
    x = 21,453,711.36/3,814.40
  6. Step 6: Final answer
    x = 5,624.40

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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.