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Finding the Fourth Proportional to 5,605.90, 8,408.79 and 2,096.79

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Solution

The fourth proportional to 5,605.90, 8,408.79 and 2,096.79 is: 3,145.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,605.90 : 8,408.79 = 2,096.79 : x
  2. Step 2: Convert to fraction form
    5,605.90/8,408.79 = 2,096.79/x
  3. Step 3: Cross multiply
    5,605.90x = 8,408.79 × 2,096.79
  4. Step 4: Simplify right side
    5,605.90x = 17,631,466.78
  5. Step 5: Solve for x
    x = 17,631,466.78/5,605.90
  6. Step 6: Final answer
    x = 3,145.16

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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.