Home / 2,841.29-3,921.55-1,646.47

Finding the Fourth Proportional to 2,841.29, 3,921.55 and 1,646.47

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Solution

The fourth proportional to 2,841.29, 3,921.55 and 1,646.47 is: 2,272.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,841.29 : 3,921.55 = 1,646.47 : x
  2. Step 2: Convert to fraction form
    2,841.29/3,921.55 = 1,646.47/x
  3. Step 3: Cross multiply
    2,841.29x = 3,921.55 × 1,646.47
  4. Step 4: Simplify right side
    2,841.29x = 6,456,714.43
  5. Step 5: Solve for x
    x = 6,456,714.43/2,841.29
  6. Step 6: Final answer
    x = 2,272.46

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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.