Home / 3,989.10-5,985.58-2,826.56

Finding the Fourth Proportional to 3,989.10, 5,985.58 and 2,826.56

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Solution

The fourth proportional to 3,989.10, 5,985.58 and 2,826.56 is: 4,241.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,989.10 : 5,985.58 = 2,826.56 : x
  2. Step 2: Convert to fraction form
    3,989.10/5,985.58 = 2,826.56/x
  3. Step 3: Cross multiply
    3,989.10x = 5,985.58 × 2,826.56
  4. Step 4: Simplify right side
    3,989.10x = 16,918,601.00
  5. Step 5: Solve for x
    x = 16,918,601.00/3,989.10
  6. Step 6: Final answer
    x = 4,241.21

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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.