Home / 2,825.47-3,899.37-1,646.29

Finding the Fourth Proportional to 2,825.47, 3,899.37 and 1,646.29

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Solution

The fourth proportional to 2,825.47, 3,899.37 and 1,646.29 is: 2,272.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,825.47 : 3,899.37 = 1,646.29 : x
  2. Step 2: Convert to fraction form
    2,825.47/3,899.37 = 1,646.29/x
  3. Step 3: Cross multiply
    2,825.47x = 3,899.37 × 1,646.29
  4. Step 4: Simplify right side
    2,825.47x = 6,419,493.84
  5. Step 5: Solve for x
    x = 6,419,493.84/2,825.47
  6. Step 6: Final answer
    x = 2,272.01

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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.