Home / 3,871.39-5,807.09-2,485.37

Finding the Fourth Proportional to 3,871.39, 5,807.09 and 2,485.37

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Solution

The fourth proportional to 3,871.39, 5,807.09 and 2,485.37 is: 3,728.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,871.39 : 5,807.09 = 2,485.37 : x
  2. Step 2: Convert to fraction form
    3,871.39/5,807.09 = 2,485.37/x
  3. Step 3: Cross multiply
    3,871.39x = 5,807.09 × 2,485.37
  4. Step 4: Simplify right side
    3,871.39x = 14,432,767.27
  5. Step 5: Solve for x
    x = 14,432,767.27/3,871.39
  6. Step 6: Final answer
    x = 3,728.06

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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.