Home / 3,415.63-5,113.86-2,179.96

Finding the Fourth Proportional to 3,415.63, 5,113.86 and 2,179.96

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Solution

The fourth proportional to 3,415.63, 5,113.86 and 2,179.96 is: 3,263.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,415.63 : 5,113.86 = 2,179.96 : x
  2. Step 2: Convert to fraction form
    3,415.63/5,113.86 = 2,179.96/x
  3. Step 3: Cross multiply
    3,415.63x = 5,113.86 × 2,179.96
  4. Step 4: Simplify right side
    3,415.63x = 11,148,010.25
  5. Step 5: Solve for x
    x = 11,148,010.25/3,415.63
  6. Step 6: Final answer
    x = 3,263.82

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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.