Home / 5,715.21-8,564.61-3,244.81

Finding the Fourth Proportional to 5,715.21, 8,564.61 and 3,244.81

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Solution

The fourth proportional to 5,715.21, 8,564.61 and 3,244.81 is: 4,862.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,715.21 : 8,564.61 = 3,244.81 : x
  2. Step 2: Convert to fraction form
    5,715.21/8,564.61 = 3,244.81/x
  3. Step 3: Cross multiply
    5,715.21x = 8,564.61 × 3,244.81
  4. Step 4: Simplify right side
    5,715.21x = 27,790,529.86
  5. Step 5: Solve for x
    x = 27,790,529.86/5,715.21
  6. Step 6: Final answer
    x = 4,862.56

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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.