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Finding the Fourth Proportional to 3,427.43, 4,729.81 and 1,935.41

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Solution

The fourth proportional to 3,427.43, 4,729.81 and 1,935.41 is: 2,670.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,427.43 : 4,729.81 = 1,935.41 : x
  2. Step 2: Convert to fraction form
    3,427.43/4,729.81 = 1,935.41/x
  3. Step 3: Cross multiply
    3,427.43x = 4,729.81 × 1,935.41
  4. Step 4: Simplify right side
    3,427.43x = 9,154,093.08
  5. Step 5: Solve for x
    x = 9,154,093.08/3,427.43
  6. Step 6: Final answer
    x = 2,670.84

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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.