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Finding the Fourth Proportional to 3,471.05, 5,201.11 and 1,908.77

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Solution

The fourth proportional to 3,471.05, 5,201.11 and 1,908.77 is: 2,860.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,471.05 : 5,201.11 = 1,908.77 : x
  2. Step 2: Convert to fraction form
    3,471.05/5,201.11 = 1,908.77/x
  3. Step 3: Cross multiply
    3,471.05x = 5,201.11 × 1,908.77
  4. Step 4: Simplify right side
    3,471.05x = 9,927,699.12
  5. Step 5: Solve for x
    x = 9,927,699.12/3,471.05
  6. Step 6: Final answer
    x = 2,860.14

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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.