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Finding the Fourth Proportional to 3,909.93, 5,395.67 and 3,592.22

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Solution

The fourth proportional to 3,909.93, 5,395.67 and 3,592.22 is: 4,957.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,909.93 : 5,395.67 = 3,592.22 : x
  2. Step 2: Convert to fraction form
    3,909.93/5,395.67 = 3,592.22/x
  3. Step 3: Cross multiply
    3,909.93x = 5,395.67 × 3,592.22
  4. Step 4: Simplify right side
    3,909.93x = 19,382,433.69
  5. Step 5: Solve for x
    x = 19,382,433.69/3,909.93
  6. Step 6: Final answer
    x = 4,957.23

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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.