Home / 3,212.84-4,817.20-1,340.04

Finding the Fourth Proportional to 3,212.84, 4,817.20 and 1,340.04

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Solution

The fourth proportional to 3,212.84, 4,817.20 and 1,340.04 is: 2,009.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.84 : 4,817.20 = 1,340.04 : x
  2. Step 2: Convert to fraction form
    3,212.84/4,817.20 = 1,340.04/x
  3. Step 3: Cross multiply
    3,212.84x = 4,817.20 × 1,340.04
  4. Step 4: Simplify right side
    3,212.84x = 6,455,240.69
  5. Step 5: Solve for x
    x = 6,455,240.69/3,212.84
  6. Step 6: Final answer
    x = 2,009.20

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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.