Home / 2,865.32-3,953.86-1,622.44

Finding the Fourth Proportional to 2,865.32, 3,953.86 and 1,622.44

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Solution

The fourth proportional to 2,865.32, 3,953.86 and 1,622.44 is: 2,238.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,865.32 : 3,953.86 = 1,622.44 : x
  2. Step 2: Convert to fraction form
    2,865.32/3,953.86 = 1,622.44/x
  3. Step 3: Cross multiply
    2,865.32x = 3,953.86 × 1,622.44
  4. Step 4: Simplify right side
    2,865.32x = 6,414,900.62
  5. Step 5: Solve for x
    x = 6,414,900.62/2,865.32
  6. Step 6: Final answer
    x = 2,238.81

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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.