Home / 3,185.28-4,780.26-2,089.26

Finding the Fourth Proportional to 3,185.28, 4,780.26 and 2,089.26

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Solution

The fourth proportional to 3,185.28, 4,780.26 and 2,089.26 is: 3,135.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,185.28 : 4,780.26 = 2,089.26 : x
  2. Step 2: Convert to fraction form
    3,185.28/4,780.26 = 2,089.26/x
  3. Step 3: Cross multiply
    3,185.28x = 4,780.26 × 2,089.26
  4. Step 4: Simplify right side
    3,185.28x = 9,987,206.01
  5. Step 5: Solve for x
    x = 9,987,206.01/3,185.28
  6. Step 6: Final answer
    x = 3,135.42

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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.