Home / 3,869.21-5,340.73-2,471.96

Finding the Fourth Proportional to 3,869.21, 5,340.73 and 2,471.96

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Solution

The fourth proportional to 3,869.21, 5,340.73 and 2,471.96 is: 3,412.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,869.21 : 5,340.73 = 2,471.96 : x
  2. Step 2: Convert to fraction form
    3,869.21/5,340.73 = 2,471.96/x
  3. Step 3: Cross multiply
    3,869.21x = 5,340.73 × 2,471.96
  4. Step 4: Simplify right side
    3,869.21x = 13,202,070.93
  5. Step 5: Solve for x
    x = 13,202,070.93/3,869.21
  6. Step 6: Final answer
    x = 3,412.08

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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.