Home / 2,161.28-3,240.41-1,064.75

Finding the Fourth Proportional to 2,161.28, 3,240.41 and 1,064.75

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Solution

The fourth proportional to 2,161.28, 3,240.41 and 1,064.75 is: 1,596.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,161.28 : 3,240.41 = 1,064.75 : x
  2. Step 2: Convert to fraction form
    2,161.28/3,240.41 = 1,064.75/x
  3. Step 3: Cross multiply
    2,161.28x = 3,240.41 × 1,064.75
  4. Step 4: Simplify right side
    2,161.28x = 3,450,205.02
  5. Step 5: Solve for x
    x = 3,450,205.02/2,161.28
  6. Step 6: Final answer
    x = 1,596.37

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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.