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Finding the Fourth Proportional to 5,549.43, 7,661.03 and 4,287.66

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Solution

The fourth proportional to 5,549.43, 7,661.03 and 4,287.66 is: 5,919.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,549.43 : 7,661.03 = 4,287.66 : x
  2. Step 2: Convert to fraction form
    5,549.43/7,661.03 = 4,287.66/x
  3. Step 3: Cross multiply
    5,549.43x = 7,661.03 × 4,287.66
  4. Step 4: Simplify right side
    5,549.43x = 32,847,891.89
  5. Step 5: Solve for x
    x = 32,847,891.89/5,549.43
  6. Step 6: Final answer
    x = 5,919.15

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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.