Home / 2,826.42-3,899.94-1,631.12

Finding the Fourth Proportional to 2,826.42, 3,899.94 and 1,631.12

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Solution

The fourth proportional to 2,826.42, 3,899.94 and 1,631.12 is: 2,250.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,826.42 : 3,899.94 = 1,631.12 : x
  2. Step 2: Convert to fraction form
    2,826.42/3,899.94 = 1,631.12/x
  3. Step 3: Cross multiply
    2,826.42x = 3,899.94 × 1,631.12
  4. Step 4: Simplify right side
    2,826.42x = 6,361,270.13
  5. Step 5: Solve for x
    x = 6,361,270.13/2,826.42
  6. Step 6: Final answer
    x = 2,250.65

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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.