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Finding the Fourth Proportional to 5,047.72, 7,570.97 and 1,928.21

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Solution

The fourth proportional to 5,047.72, 7,570.97 and 1,928.21 is: 2,892.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,047.72 : 7,570.97 = 1,928.21 : x
  2. Step 2: Convert to fraction form
    5,047.72/7,570.97 = 1,928.21/x
  3. Step 3: Cross multiply
    5,047.72x = 7,570.97 × 1,928.21
  4. Step 4: Simplify right side
    5,047.72x = 14,598,379.80
  5. Step 5: Solve for x
    x = 14,598,379.80/5,047.72
  6. Step 6: Final answer
    x = 2,892.08

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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.