Home / 1,608.68-2,218.98-1,167.08

Finding the Fourth Proportional to 1,608.68, 2,218.98 and 1,167.08

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Solution

The fourth proportional to 1,608.68, 2,218.98 and 1,167.08 is: 1,609.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,608.68 : 2,218.98 = 1,167.08 : x
  2. Step 2: Convert to fraction form
    1,608.68/2,218.98 = 1,167.08/x
  3. Step 3: Cross multiply
    1,608.68x = 2,218.98 × 1,167.08
  4. Step 4: Simplify right side
    1,608.68x = 2,589,727.18
  5. Step 5: Solve for x
    x = 2,589,727.18/1,608.68
  6. Step 6: Final answer
    x = 1,609.85

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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.