Home / 4,765.45-7,150.98-1,991.91

Finding the Fourth Proportional to 4,765.45, 7,150.98 and 1,991.91

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Solution

The fourth proportional to 4,765.45, 7,150.98 and 1,991.91 is: 2,989.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,765.45 : 7,150.98 = 1,991.91 : x
  2. Step 2: Convert to fraction form
    4,765.45/7,150.98 = 1,991.91/x
  3. Step 3: Cross multiply
    4,765.45x = 7,150.98 × 1,991.91
  4. Step 4: Simplify right side
    4,765.45x = 14,244,102.63
  5. Step 5: Solve for x
    x = 14,244,102.63/4,765.45
  6. Step 6: Final answer
    x = 2,989.04

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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.