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Finding the Fourth Proportional to 3,471.02, 4,790.08 and 1,899.08

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Solution

The fourth proportional to 3,471.02, 4,790.08 and 1,899.08 is: 2,620.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,471.02 : 4,790.08 = 1,899.08 : x
  2. Step 2: Convert to fraction form
    3,471.02/4,790.08 = 1,899.08/x
  3. Step 3: Cross multiply
    3,471.02x = 4,790.08 × 1,899.08
  4. Step 4: Simplify right side
    3,471.02x = 9,096,745.13
  5. Step 5: Solve for x
    x = 9,096,745.13/3,471.02
  6. Step 6: Final answer
    x = 2,620.77

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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.