Home / 4,890.60-6,750-3,212.28

Finding the Fourth Proportional to 4,890.60, 6,750 and 3,212.28

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Solution

The fourth proportional to 4,890.60, 6,750 and 3,212.28 is: 4,433.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,890.60 : 6,750 = 3,212.28 : x
  2. Step 2: Convert to fraction form
    4,890.60/6,750 = 3,212.28/x
  3. Step 3: Cross multiply
    4,890.60x = 6,750 × 3,212.28
  4. Step 4: Simplify right side
    4,890.60x = 21,682,890
  5. Step 5: Solve for x
    x = 21,682,890/4,890.60
  6. Step 6: Final answer
    x = 4,433.58

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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.