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Finding the Fourth Proportional to 3,943, 5,425.08 and 3,845.80

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Solution

The fourth proportional to 3,943, 5,425.08 and 3,845.80 is: 5,291.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,943 : 5,425.08 = 3,845.80 : x
  2. Step 2: Convert to fraction form
    3,943/5,425.08 = 3,845.80/x
  3. Step 3: Cross multiply
    3,943x = 5,425.08 × 3,845.80
  4. Step 4: Simplify right side
    3,943x = 20,863,772.66
  5. Step 5: Solve for x
    x = 20,863,772.66/3,943
  6. Step 6: Final answer
    x = 5,291.34

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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.