Home / 2,836.81-3,912.46-2,175.24

Finding the Fourth Proportional to 2,836.81, 3,912.46 and 2,175.24

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Solution

The fourth proportional to 2,836.81, 3,912.46 and 2,175.24 is: 3,000.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,836.81 : 3,912.46 = 2,175.24 : x
  2. Step 2: Convert to fraction form
    2,836.81/3,912.46 = 2,175.24/x
  3. Step 3: Cross multiply
    2,836.81x = 3,912.46 × 2,175.24
  4. Step 4: Simplify right side
    2,836.81x = 8,510,539.49
  5. Step 5: Solve for x
    x = 8,510,539.49/2,836.81
  6. Step 6: Final answer
    x = 3,000.04

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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.