Home / 4,765.39-7,150.89-1,991.85

Finding the Fourth Proportional to 4,765.39, 7,150.89 and 1,991.85

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Solution

The fourth proportional to 4,765.39, 7,150.89 and 1,991.85 is: 2,988.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,765.39 : 7,150.89 = 1,991.85 : x
  2. Step 2: Convert to fraction form
    4,765.39/7,150.89 = 1,991.85/x
  3. Step 3: Cross multiply
    4,765.39x = 7,150.89 × 1,991.85
  4. Step 4: Simplify right side
    4,765.39x = 14,243,464.49
  5. Step 5: Solve for x
    x = 14,243,464.49/4,765.39
  6. Step 6: Final answer
    x = 2,988.94

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1.5x scale

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.