Home / 3,431.01-4,734.87-1,938.96

Finding the Fourth Proportional to 3,431.01, 4,734.87 and 1,938.96

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Solution

The fourth proportional to 3,431.01, 4,734.87 and 1,938.96 is: 2,675.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.01 : 4,734.87 = 1,938.96 : x
  2. Step 2: Convert to fraction form
    3,431.01/4,734.87 = 1,938.96/x
  3. Step 3: Cross multiply
    3,431.01x = 4,734.87 × 1,938.96
  4. Step 4: Simplify right side
    3,431.01x = 9,180,723.54
  5. Step 5: Solve for x
    x = 9,180,723.54/3,431.01
  6. Step 6: Final answer
    x = 2,675.81

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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.