Home / 3,871.98-5,341.61-2,299.16

Finding the Fourth Proportional to 3,871.98, 5,341.61 and 2,299.16

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Solution

The fourth proportional to 3,871.98, 5,341.61 and 2,299.16 is: 3,171.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,871.98 : 5,341.61 = 2,299.16 : x
  2. Step 2: Convert to fraction form
    3,871.98/5,341.61 = 2,299.16/x
  3. Step 3: Cross multiply
    3,871.98x = 5,341.61 × 2,299.16
  4. Step 4: Simplify right side
    3,871.98x = 12,281,177.84
  5. Step 5: Solve for x
    x = 12,281,177.84/3,871.98
  6. Step 6: Final answer
    x = 3,171.81

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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.