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Finding the Fourth Proportional to 4,892.56, 7,333.44 and 1,928.80

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Solution

The fourth proportional to 4,892.56, 7,333.44 and 1,928.80 is: 2,891.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,892.56 : 7,333.44 = 1,928.80 : x
  2. Step 2: Convert to fraction form
    4,892.56/7,333.44 = 1,928.80/x
  3. Step 3: Cross multiply
    4,892.56x = 7,333.44 × 1,928.80
  4. Step 4: Simplify right side
    4,892.56x = 14,144,739.07
  5. Step 5: Solve for x
    x = 14,144,739.07/4,892.56
  6. Step 6: Final answer
    x = 2,891.07

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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.