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Finding the Fourth Proportional to 5,072.88, 7,609.96 and 1,952.80

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Solution

The fourth proportional to 5,072.88, 7,609.96 and 1,952.80 is: 2,929.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,072.88 : 7,609.96 = 1,952.80 : x
  2. Step 2: Convert to fraction form
    5,072.88/7,609.96 = 1,952.80/x
  3. Step 3: Cross multiply
    5,072.88x = 7,609.96 × 1,952.80
  4. Step 4: Simplify right side
    5,072.88x = 14,860,729.89
  5. Step 5: Solve for x
    x = 14,860,729.89/5,072.88
  6. Step 6: Final answer
    x = 2,929.45

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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.