Home / 2,167.06-2,987.83-1,808.66

Finding the Fourth Proportional to 2,167.06, 2,987.83 and 1,808.66

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Solution

The fourth proportional to 2,167.06, 2,987.83 and 1,808.66 is: 2,493.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,167.06 : 2,987.83 = 1,808.66 : x
  2. Step 2: Convert to fraction form
    2,167.06/2,987.83 = 1,808.66/x
  3. Step 3: Cross multiply
    2,167.06x = 2,987.83 × 1,808.66
  4. Step 4: Simplify right side
    2,167.06x = 5,403,964.09
  5. Step 5: Solve for x
    x = 5,403,964.09/2,167.06
  6. Step 6: Final answer
    x = 2,493.69

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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.