Home / 3,407.31-5,107.94-1,326.83

Finding the Fourth Proportional to 3,407.31, 5,107.94 and 1,326.83

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Solution

The fourth proportional to 3,407.31, 5,107.94 and 1,326.83 is: 1,989.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,407.31 : 5,107.94 = 1,326.83 : x
  2. Step 2: Convert to fraction form
    3,407.31/5,107.94 = 1,326.83/x
  3. Step 3: Cross multiply
    3,407.31x = 5,107.94 × 1,326.83
  4. Step 4: Simplify right side
    3,407.31x = 6,777,361.40
  5. Step 5: Solve for x
    x = 6,777,361.40/3,407.31
  6. Step 6: Final answer
    x = 1,989.07

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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.