Home / 2,788.01-4,181.66-1,618.64

Finding the Fourth Proportional to 2,788.01, 4,181.66 and 1,618.64

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Solution

The fourth proportional to 2,788.01, 4,181.66 and 1,618.64 is: 2,427.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788.01 : 4,181.66 = 1,618.64 : x
  2. Step 2: Convert to fraction form
    2,788.01/4,181.66 = 1,618.64/x
  3. Step 3: Cross multiply
    2,788.01x = 4,181.66 × 1,618.64
  4. Step 4: Simplify right side
    2,788.01x = 6,768,616.64
  5. Step 5: Solve for x
    x = 6,768,616.64/2,788.01
  6. Step 6: Final answer
    x = 2,427.76

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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.