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Finding the Fourth Proportional to 2,896.96, 3,995.67 and 1,901.87

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Solution

The fourth proportional to 2,896.96, 3,995.67 and 1,901.87 is: 2,623.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,896.96 : 3,995.67 = 1,901.87 : x
  2. Step 2: Convert to fraction form
    2,896.96/3,995.67 = 1,901.87/x
  3. Step 3: Cross multiply
    2,896.96x = 3,995.67 × 1,901.87
  4. Step 4: Simplify right side
    2,896.96x = 7,599,252.03
  5. Step 5: Solve for x
    x = 7,599,252.03/2,896.96
  6. Step 6: Final answer
    x = 2,623.19

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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.