Home / 3,871.48-5,343.96-2,379.46

Finding the Fourth Proportional to 3,871.48, 5,343.96 and 2,379.46

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Solution

The fourth proportional to 3,871.48, 5,343.96 and 2,379.46 is: 3,284.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,871.48 : 5,343.96 = 2,379.46 : x
  2. Step 2: Convert to fraction form
    3,871.48/5,343.96 = 2,379.46/x
  3. Step 3: Cross multiply
    3,871.48x = 5,343.96 × 2,379.46
  4. Step 4: Simplify right side
    3,871.48x = 12,715,739.06
  5. Step 5: Solve for x
    x = 12,715,739.06/3,871.48
  6. Step 6: Final answer
    x = 3,284.46

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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.