Home / 5,247.75-7,872.98-1,960.87

Finding the Fourth Proportional to 5,247.75, 7,872.98 and 1,960.87

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Solution

The fourth proportional to 5,247.75, 7,872.98 and 1,960.87 is: 2,941.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,247.75 : 7,872.98 = 1,960.87 : x
  2. Step 2: Convert to fraction form
    5,247.75/7,872.98 = 1,960.87/x
  3. Step 3: Cross multiply
    5,247.75x = 7,872.98 × 1,960.87
  4. Step 4: Simplify right side
    5,247.75x = 15,437,841.12
  5. Step 5: Solve for x
    x = 15,437,841.12/5,247.75
  6. Step 6: Final answer
    x = 2,941.80

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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.