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Finding the Fourth Proportional to 7,896.89, 11,841.85 and 2,899.29

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Solution

The fourth proportional to 7,896.89, 11,841.85 and 2,899.29 is: 4,347.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,896.89 : 11,841.85 = 2,899.29 : x
  2. Step 2: Convert to fraction form
    7,896.89/11,841.85 = 2,899.29/x
  3. Step 3: Cross multiply
    7,896.89x = 11,841.85 × 2,899.29
  4. Step 4: Simplify right side
    7,896.89x = 34,332,989.01
  5. Step 5: Solve for x
    x = 34,332,989.01/7,896.89
  6. Step 6: Final answer
    x = 4,347.66

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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.