Home / 2,826.29-4,239.44-1,989.93

Finding the Fourth Proportional to 2,826.29, 4,239.44 and 1,989.93

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Solution

The fourth proportional to 2,826.29, 4,239.44 and 1,989.93 is: 2,984.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,826.29 : 4,239.44 = 1,989.93 : x
  2. Step 2: Convert to fraction form
    2,826.29/4,239.44 = 1,989.93/x
  3. Step 3: Cross multiply
    2,826.29x = 4,239.44 × 1,989.93
  4. Step 4: Simplify right side
    2,826.29x = 8,436,188.84
  5. Step 5: Solve for x
    x = 8,436,188.84/2,826.29
  6. Step 6: Final answer
    x = 2,984.90

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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.