Home / 1,511.58-2,268.21-1,181.58

Finding the Fourth Proportional to 1,511.58, 2,268.21 and 1,181.58

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Solution

The fourth proportional to 1,511.58, 2,268.21 and 1,181.58 is: 1,773.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511.58 : 2,268.21 = 1,181.58 : x
  2. Step 2: Convert to fraction form
    1,511.58/2,268.21 = 1,181.58/x
  3. Step 3: Cross multiply
    1,511.58x = 2,268.21 × 1,181.58
  4. Step 4: Simplify right side
    1,511.58x = 2,680,071.57
  5. Step 5: Solve for x
    x = 2,680,071.57/1,511.58
  6. Step 6: Final answer
    x = 1,773.03

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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.