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Finding the Fourth Proportional to 5,072.98, 7,000.78 and 2,834.96

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Solution

The fourth proportional to 5,072.98, 7,000.78 and 2,834.96 is: 3,912.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,072.98 : 7,000.78 = 2,834.96 : x
  2. Step 2: Convert to fraction form
    5,072.98/7,000.78 = 2,834.96/x
  3. Step 3: Cross multiply
    5,072.98x = 7,000.78 × 2,834.96
  4. Step 4: Simplify right side
    5,072.98x = 19,846,931.27
  5. Step 5: Solve for x
    x = 19,846,931.27/5,072.98
  6. Step 6: Final answer
    x = 3,912.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.