Home / 6,505.34-9,755.88-2,121.74

Finding the Fourth Proportional to 6,505.34, 9,755.88 and 2,121.74

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Solution

The fourth proportional to 6,505.34, 9,755.88 and 2,121.74 is: 3,181.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,505.34 : 9,755.88 = 2,121.74 : x
  2. Step 2: Convert to fraction form
    6,505.34/9,755.88 = 2,121.74/x
  3. Step 3: Cross multiply
    6,505.34x = 9,755.88 × 2,121.74
  4. Step 4: Simplify right side
    6,505.34x = 20,699,440.83
  5. Step 5: Solve for x
    x = 20,699,440.83/6,505.34
  6. Step 6: Final answer
    x = 3,181.92

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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.