Home / 2,825.46-3,899.16-1,646.64

Finding the Fourth Proportional to 2,825.46, 3,899.16 and 1,646.64

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Solution

The fourth proportional to 2,825.46, 3,899.16 and 1,646.64 is: 2,272.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,825.46 : 3,899.16 = 1,646.64 : x
  2. Step 2: Convert to fraction form
    2,825.46/3,899.16 = 1,646.64/x
  3. Step 3: Cross multiply
    2,825.46x = 3,899.16 × 1,646.64
  4. Step 4: Simplify right side
    2,825.46x = 6,420,512.82
  5. Step 5: Solve for x
    x = 6,420,512.82/2,825.46
  6. Step 6: Final answer
    x = 2,272.38

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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.