Home / 3,106.07-4,286.39-1,779.75

Finding the Fourth Proportional to 3,106.07, 4,286.39 and 1,779.75

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Solution

The fourth proportional to 3,106.07, 4,286.39 and 1,779.75 is: 2,456.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,106.07 : 4,286.39 = 1,779.75 : x
  2. Step 2: Convert to fraction form
    3,106.07/4,286.39 = 1,779.75/x
  3. Step 3: Cross multiply
    3,106.07x = 4,286.39 × 1,779.75
  4. Step 4: Simplify right side
    3,106.07x = 7,628,693.70
  5. Step 5: Solve for x
    x = 7,628,693.70/3,106.07
  6. Step 6: Final answer
    x = 2,456.06

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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.