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Finding the Fourth Proportional to 3,163.59, 4,365.50 and 1,905.57

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Solution

The fourth proportional to 3,163.59, 4,365.50 and 1,905.57 is: 2,629.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,163.59 : 4,365.50 = 1,905.57 : x
  2. Step 2: Convert to fraction form
    3,163.59/4,365.50 = 1,905.57/x
  3. Step 3: Cross multiply
    3,163.59x = 4,365.50 × 1,905.57
  4. Step 4: Simplify right side
    3,163.59x = 8,318,756.31
  5. Step 5: Solve for x
    x = 8,318,756.31/3,163.59
  6. Step 6: Final answer
    x = 2,629.53

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1.5x scale

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.