Home / 2,091.62-2,886.68-1,252.77

Finding the Fourth Proportional to 2,091.62, 2,886.68 and 1,252.77

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Solution

The fourth proportional to 2,091.62, 2,886.68 and 1,252.77 is: 1,728.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,091.62 : 2,886.68 = 1,252.77 : x
  2. Step 2: Convert to fraction form
    2,091.62/2,886.68 = 1,252.77/x
  3. Step 3: Cross multiply
    2,091.62x = 2,886.68 × 1,252.77
  4. Step 4: Simplify right side
    2,091.62x = 3,616,339.84
  5. Step 5: Solve for x
    x = 3,616,339.84/2,091.62
  6. Step 6: Final answer
    x = 1,728.97

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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.