Home / 1,911.33-2,867.00-1,181.16

Finding the Fourth Proportional to 1,911.33, 2,867.00 and 1,181.16

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Solution

The fourth proportional to 1,911.33, 2,867.00 and 1,181.16 is: 1,771.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,911.33 : 2,867.00 = 1,181.16 : x
  2. Step 2: Convert to fraction form
    1,911.33/2,867.00 = 1,181.16/x
  3. Step 3: Cross multiply
    1,911.33x = 2,867.00 × 1,181.16
  4. Step 4: Simplify right side
    1,911.33x = 3,386,379.81
  5. Step 5: Solve for x
    x = 3,386,379.81/1,911.33
  6. Step 6: Final answer
    x = 1,771.74

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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.