Home / 2,841.91-3,921.49-1,646.89

Finding the Fourth Proportional to 2,841.91, 3,921.49 and 1,646.89

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Solution

The fourth proportional to 2,841.91, 3,921.49 and 1,646.89 is: 2,272.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,841.91 : 3,921.49 = 1,646.89 : x
  2. Step 2: Convert to fraction form
    2,841.91/3,921.49 = 1,646.89/x
  3. Step 3: Cross multiply
    2,841.91x = 3,921.49 × 1,646.89
  4. Step 4: Simplify right side
    2,841.91x = 6,458,262.67
  5. Step 5: Solve for x
    x = 6,458,262.67/2,841.91
  6. Step 6: Final answer
    x = 2,272.51

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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.