Home / 2,825.64-3,899.25-1,646.69

Finding the Fourth Proportional to 2,825.64, 3,899.25 and 1,646.69

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Solution

The fourth proportional to 2,825.64, 3,899.25 and 1,646.69 is: 2,272.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,825.64 : 3,899.25 = 1,646.69 : x
  2. Step 2: Convert to fraction form
    2,825.64/3,899.25 = 1,646.69/x
  3. Step 3: Cross multiply
    2,825.64x = 3,899.25 × 1,646.69
  4. Step 4: Simplify right side
    2,825.64x = 6,420,836.49
  5. Step 5: Solve for x
    x = 6,420,836.49/2,825.64
  6. Step 6: Final answer
    x = 2,272.35

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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.