Home / 3,212.75-4,817.28-1,263.89

Finding the Fourth Proportional to 3,212.75, 4,817.28 and 1,263.89

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Solution

The fourth proportional to 3,212.75, 4,817.28 and 1,263.89 is: 1,895.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.75 : 4,817.28 = 1,263.89 : x
  2. Step 2: Convert to fraction form
    3,212.75/4,817.28 = 1,263.89/x
  3. Step 3: Cross multiply
    3,212.75x = 4,817.28 × 1,263.89
  4. Step 4: Simplify right side
    3,212.75x = 6,088,512.02
  5. Step 5: Solve for x
    x = 6,088,512.02/3,212.75
  6. Step 6: Final answer
    x = 1,895.11

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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.