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Finding the Fourth Proportional to 5,669.70, 8,506.17 and 2,160.78

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Solution

The fourth proportional to 5,669.70, 8,506.17 and 2,160.78 is: 3,241.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,669.70 : 8,506.17 = 2,160.78 : x
  2. Step 2: Convert to fraction form
    5,669.70/8,506.17 = 2,160.78/x
  3. Step 3: Cross multiply
    5,669.70x = 8,506.17 × 2,160.78
  4. Step 4: Simplify right side
    5,669.70x = 18,379,962.01
  5. Step 5: Solve for x
    x = 18,379,962.01/5,669.70
  6. Step 6: Final answer
    x = 3,241.79

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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.