Home / 3,761.35-5,639.98-2,986.34

Finding the Fourth Proportional to 3,761.35, 5,639.98 and 2,986.34

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Solution

The fourth proportional to 3,761.35, 5,639.98 and 2,986.34 is: 4,477.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,761.35 : 5,639.98 = 2,986.34 : x
  2. Step 2: Convert to fraction form
    3,761.35/5,639.98 = 2,986.34/x
  3. Step 3: Cross multiply
    3,761.35x = 5,639.98 × 2,986.34
  4. Step 4: Simplify right side
    3,761.35x = 16,842,867.81
  5. Step 5: Solve for x
    x = 16,842,867.81/3,761.35
  6. Step 6: Final answer
    x = 4,477.87

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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.