Home / 3,150.90-4,346.73-1,891.62

Finding the Fourth Proportional to 3,150.90, 4,346.73 and 1,891.62

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Solution

The fourth proportional to 3,150.90, 4,346.73 and 1,891.62 is: 2,609.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,150.90 : 4,346.73 = 1,891.62 : x
  2. Step 2: Convert to fraction form
    3,150.90/4,346.73 = 1,891.62/x
  3. Step 3: Cross multiply
    3,150.90x = 4,346.73 × 1,891.62
  4. Step 4: Simplify right side
    3,150.90x = 8,222,361.40
  5. Step 5: Solve for x
    x = 8,222,361.40/3,150.90
  6. Step 6: Final answer
    x = 2,609.53

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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.