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Finding the Fourth Proportional to 2,897.83, 3,997.11 and 1,903.96

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Solution

The fourth proportional to 2,897.83, 3,997.11 and 1,903.96 is: 2,626.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,897.83 : 3,997.11 = 1,903.96 : x
  2. Step 2: Convert to fraction form
    2,897.83/3,997.11 = 1,903.96/x
  3. Step 3: Cross multiply
    2,897.83x = 3,997.11 × 1,903.96
  4. Step 4: Simplify right side
    2,897.83x = 7,610,337.56
  5. Step 5: Solve for x
    x = 7,610,337.56/2,897.83
  6. Step 6: Final answer
    x = 2,626.22

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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.