Home / 5,665.47-7,817.66-3,147.26

Finding the Fourth Proportional to 5,665.47, 7,817.66 and 3,147.26

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Solution

The fourth proportional to 5,665.47, 7,817.66 and 3,147.26 is: 4,342.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,665.47 : 7,817.66 = 3,147.26 : x
  2. Step 2: Convert to fraction form
    5,665.47/7,817.66 = 3,147.26/x
  3. Step 3: Cross multiply
    5,665.47x = 7,817.66 × 3,147.26
  4. Step 4: Simplify right side
    5,665.47x = 24,604,183.29
  5. Step 5: Solve for x
    x = 24,604,183.29/5,665.47
  6. Step 6: Final answer
    x = 4,342.83

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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.