Home / 1,618.07-2,233.77-1,089.72

Finding the Fourth Proportional to 1,618.07, 2,233.77 and 1,089.72

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Solution

The fourth proportional to 1,618.07, 2,233.77 and 1,089.72 is: 1,504.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,618.07 : 2,233.77 = 1,089.72 : x
  2. Step 2: Convert to fraction form
    1,618.07/2,233.77 = 1,089.72/x
  3. Step 3: Cross multiply
    1,618.07x = 2,233.77 × 1,089.72
  4. Step 4: Simplify right side
    1,618.07x = 2,434,183.84
  5. Step 5: Solve for x
    x = 2,434,183.84/1,618.07
  6. Step 6: Final answer
    x = 1,504.38

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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.