Home / 3,106.18-4,286.42-1,708.92

Finding the Fourth Proportional to 3,106.18, 4,286.42 and 1,708.92

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Solution

The fourth proportional to 3,106.18, 4,286.42 and 1,708.92 is: 2,358.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,106.18 : 4,286.42 = 1,708.92 : x
  2. Step 2: Convert to fraction form
    3,106.18/4,286.42 = 1,708.92/x
  3. Step 3: Cross multiply
    3,106.18x = 4,286.42 × 1,708.92
  4. Step 4: Simplify right side
    3,106.18x = 7,325,148.87
  5. Step 5: Solve for x
    x = 7,325,148.87/3,106.18
  6. Step 6: Final answer
    x = 2,358.25

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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.