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Finding the Fourth Proportional to 2,896.61, 3,998.03 and 1,903.23

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Solution

The fourth proportional to 2,896.61, 3,998.03 and 1,903.23 is: 2,626.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,896.61 : 3,998.03 = 1,903.23 : x
  2. Step 2: Convert to fraction form
    2,896.61/3,998.03 = 1,903.23/x
  3. Step 3: Cross multiply
    2,896.61x = 3,998.03 × 1,903.23
  4. Step 4: Simplify right side
    2,896.61x = 7,609,175.39
  5. Step 5: Solve for x
    x = 7,609,175.39/2,896.61
  6. Step 6: Final answer
    x = 2,626.93

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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.