Home / 6,513.84-9,771.96-2,131.54

Finding the Fourth Proportional to 6,513.84, 9,771.96 and 2,131.54

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Solution

The fourth proportional to 6,513.84, 9,771.96 and 2,131.54 is: 3,197.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,513.84 : 9,771.96 = 2,131.54 : x
  2. Step 2: Convert to fraction form
    6,513.84/9,771.96 = 2,131.54/x
  3. Step 3: Cross multiply
    6,513.84x = 9,771.96 × 2,131.54
  4. Step 4: Simplify right side
    6,513.84x = 20,829,323.62
  5. Step 5: Solve for x
    x = 20,829,323.62/6,513.84
  6. Step 6: Final answer
    x = 3,197.70

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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.