Home / 3,471.11-4,790.13-1,899.21

Finding the Fourth Proportional to 3,471.11, 4,790.13 and 1,899.21

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Solution

The fourth proportional to 3,471.11, 4,790.13 and 1,899.21 is: 2,620.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,471.11 : 4,790.13 = 1,899.21 : x
  2. Step 2: Convert to fraction form
    3,471.11/4,790.13 = 1,899.21/x
  3. Step 3: Cross multiply
    3,471.11x = 4,790.13 × 1,899.21
  4. Step 4: Simplify right side
    3,471.11x = 9,097,429.35
  5. Step 5: Solve for x
    x = 9,097,429.35/3,471.11
  6. Step 6: Final answer
    x = 2,620.90

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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.