Home / 6,505.89-9,759.84-2,122.32

Finding the Fourth Proportional to 6,505.89, 9,759.84 and 2,122.32

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Solution

The fourth proportional to 6,505.89, 9,759.84 and 2,122.32 is: 3,183.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,505.89 : 9,759.84 = 2,122.32 : x
  2. Step 2: Convert to fraction form
    6,505.89/9,759.84 = 2,122.32/x
  3. Step 3: Cross multiply
    6,505.89x = 9,759.84 × 2,122.32
  4. Step 4: Simplify right side
    6,505.89x = 20,713,503.63
  5. Step 5: Solve for x
    x = 20,713,503.63/6,505.89
  6. Step 6: Final answer
    x = 3,183.81

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1.5x scale

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.