Home / 3,489.12-4,813.52-2,309.92

Finding the Fourth Proportional to 3,489.12, 4,813.52 and 2,309.92

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Solution

The fourth proportional to 3,489.12, 4,813.52 and 2,309.92 is: 3,186.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,489.12 : 4,813.52 = 2,309.92 : x
  2. Step 2: Convert to fraction form
    3,489.12/4,813.52 = 2,309.92/x
  3. Step 3: Cross multiply
    3,489.12x = 4,813.52 × 2,309.92
  4. Step 4: Simplify right side
    3,489.12x = 11,118,846.12
  5. Step 5: Solve for x
    x = 11,118,846.12/3,489.12
  6. Step 6: Final answer
    x = 3,186.72

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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.