Home / 2,135.97-3,205.04-1,040.31

Finding the Fourth Proportional to 2,135.97, 3,205.04 and 1,040.31

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Solution

The fourth proportional to 2,135.97, 3,205.04 and 1,040.31 is: 1,560.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135.97 : 3,205.04 = 1,040.31 : x
  2. Step 2: Convert to fraction form
    2,135.97/3,205.04 = 1,040.31/x
  3. Step 3: Cross multiply
    2,135.97x = 3,205.04 × 1,040.31
  4. Step 4: Simplify right side
    2,135.97x = 3,334,229.96
  5. Step 5: Solve for x
    x = 3,334,229.96/2,135.97
  6. Step 6: Final answer
    x = 1,560.99

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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.