Home / 2,091.97-2,886.27-1,207.66

Finding the Fourth Proportional to 2,091.97, 2,886.27 and 1,207.66

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Solution

The fourth proportional to 2,091.97, 2,886.27 and 1,207.66 is: 1,666.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,091.97 : 2,886.27 = 1,207.66 : x
  2. Step 2: Convert to fraction form
    2,091.97/2,886.27 = 1,207.66/x
  3. Step 3: Cross multiply
    2,091.97x = 2,886.27 × 1,207.66
  4. Step 4: Simplify right side
    2,091.97x = 3,485,632.83
  5. Step 5: Solve for x
    x = 3,485,632.83/2,091.97
  6. Step 6: Final answer
    x = 1,666.20

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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.