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Finding the Fourth Proportional to 3,750.81, 5,621.94 and 1,667.68

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Solution

The fourth proportional to 3,750.81, 5,621.94 and 1,667.68 is: 2,499.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,750.81 : 5,621.94 = 1,667.68 : x
  2. Step 2: Convert to fraction form
    3,750.81/5,621.94 = 1,667.68/x
  3. Step 3: Cross multiply
    3,750.81x = 5,621.94 × 1,667.68
  4. Step 4: Simplify right side
    3,750.81x = 9,375,596.90
  5. Step 5: Solve for x
    x = 9,375,596.90/3,750.81
  6. Step 6: Final answer
    x = 2,499.62

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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.