Home / 2,834.66-3,912.20-1,715.64

Finding the Fourth Proportional to 2,834.66, 3,912.20 and 1,715.64

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Solution

The fourth proportional to 2,834.66, 3,912.20 and 1,715.64 is: 2,367.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,834.66 : 3,912.20 = 1,715.64 : x
  2. Step 2: Convert to fraction form
    2,834.66/3,912.20 = 1,715.64/x
  3. Step 3: Cross multiply
    2,834.66x = 3,912.20 × 1,715.64
  4. Step 4: Simplify right side
    2,834.66x = 6,711,918.23
  5. Step 5: Solve for x
    x = 6,711,918.23/2,834.66
  6. Step 6: Final answer
    x = 2,367.81

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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.