Home / 4,890.72-6,750-3,317.76

Finding the Fourth Proportional to 4,890.72, 6,750 and 3,317.76

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Solution

The fourth proportional to 4,890.72, 6,750 and 3,317.76 is: 4,579.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,890.72 : 6,750 = 3,317.76 : x
  2. Step 2: Convert to fraction form
    4,890.72/6,750 = 3,317.76/x
  3. Step 3: Cross multiply
    4,890.72x = 6,750 × 3,317.76
  4. Step 4: Simplify right side
    4,890.72x = 22,394,880
  5. Step 5: Solve for x
    x = 22,394,880/4,890.72
  6. Step 6: Final answer
    x = 4,579.06

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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.