Home / 2,841.08-3,919.58-1,721.28

Finding the Fourth Proportional to 2,841.08, 3,919.58 and 1,721.28

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Solution

The fourth proportional to 2,841.08, 3,919.58 and 1,721.28 is: 2,374.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,841.08 : 3,919.58 = 1,721.28 : x
  2. Step 2: Convert to fraction form
    2,841.08/3,919.58 = 1,721.28/x
  3. Step 3: Cross multiply
    2,841.08x = 3,919.58 × 1,721.28
  4. Step 4: Simplify right side
    2,841.08x = 6,746,694.66
  5. Step 5: Solve for x
    x = 6,746,694.66/2,841.08
  6. Step 6: Final answer
    x = 2,374.69

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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.