Home / 5,213.70-7,820.19-2,291.94

Finding the Fourth Proportional to 5,213.70, 7,820.19 and 2,291.94

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Solution

The fourth proportional to 5,213.70, 7,820.19 and 2,291.94 is: 3,437.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,213.70 : 7,820.19 = 2,291.94 : x
  2. Step 2: Convert to fraction form
    5,213.70/7,820.19 = 2,291.94/x
  3. Step 3: Cross multiply
    5,213.70x = 7,820.19 × 2,291.94
  4. Step 4: Simplify right side
    5,213.70x = 17,923,406.27
  5. Step 5: Solve for x
    x = 17,923,406.27/5,213.70
  6. Step 6: Final answer
    x = 3,437.75

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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.