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Finding the Fourth Proportional to 3,928.02, 5,892.06 and 1,847.40

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Solution

The fourth proportional to 3,928.02, 5,892.06 and 1,847.40 is: 2,771.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928.02 : 5,892.06 = 1,847.40 : x
  2. Step 2: Convert to fraction form
    3,928.02/5,892.06 = 1,847.40/x
  3. Step 3: Cross multiply
    3,928.02x = 5,892.06 × 1,847.40
  4. Step 4: Simplify right side
    3,928.02x = 10,884,991.64
  5. Step 5: Solve for x
    x = 10,884,991.64/3,928.02
  6. Step 6: Final answer
    x = 2,771.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.