Home / 2,788.16-4,182.23-1,328.33

Finding the Fourth Proportional to 2,788.16, 4,182.23 and 1,328.33

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Solution

The fourth proportional to 2,788.16, 4,182.23 and 1,328.33 is: 1,992.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788.16 : 4,182.23 = 1,328.33 : x
  2. Step 2: Convert to fraction form
    2,788.16/4,182.23 = 1,328.33/x
  3. Step 3: Cross multiply
    2,788.16x = 4,182.23 × 1,328.33
  4. Step 4: Simplify right side
    2,788.16x = 5,555,374.93
  5. Step 5: Solve for x
    x = 5,555,374.93/2,788.16
  6. Step 6: Final answer
    x = 1,992.49

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.