Home / 3,106.94-4,287.57-1,709.69

Finding the Fourth Proportional to 3,106.94, 4,287.57 and 1,709.69

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Solution

The fourth proportional to 3,106.94, 4,287.57 and 1,709.69 is: 2,359.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,106.94 : 4,287.57 = 1,709.69 : x
  2. Step 2: Convert to fraction form
    3,106.94/4,287.57 = 1,709.69/x
  3. Step 3: Cross multiply
    3,106.94x = 4,287.57 × 1,709.69
  4. Step 4: Simplify right side
    3,106.94x = 7,330,394.12
  5. Step 5: Solve for x
    x = 7,330,394.12/3,106.94
  6. Step 6: Final answer
    x = 2,359.37

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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.