Home / 5,665.16-7,817.82-3,147.16

Finding the Fourth Proportional to 5,665.16, 7,817.82 and 3,147.16

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Solution

The fourth proportional to 5,665.16, 7,817.82 and 3,147.16 is: 4,343.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,665.16 : 7,817.82 = 3,147.16 : x
  2. Step 2: Convert to fraction form
    5,665.16/7,817.82 = 3,147.16/x
  3. Step 3: Cross multiply
    5,665.16x = 7,817.82 × 3,147.16
  4. Step 4: Simplify right side
    5,665.16x = 24,603,914.66
  5. Step 5: Solve for x
    x = 24,603,914.66/5,665.16
  6. Step 6: Final answer
    x = 4,343.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.