Home / 3,858.11-5,325.09-2,739.40

Finding the Fourth Proportional to 3,858.11, 5,325.09 and 2,739.40

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Solution

The fourth proportional to 3,858.11, 5,325.09 and 2,739.40 is: 3,781.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,858.11 : 5,325.09 = 2,739.40 : x
  2. Step 2: Convert to fraction form
    3,858.11/5,325.09 = 2,739.40/x
  3. Step 3: Cross multiply
    3,858.11x = 5,325.09 × 2,739.40
  4. Step 4: Simplify right side
    3,858.11x = 14,587,563.34
  5. Step 5: Solve for x
    x = 14,587,563.34/3,858.11
  6. Step 6: Final answer
    x = 3,781.01

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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.