Home / 1,830.11-2,741.60-1,211.97

Finding the Fourth Proportional to 1,830.11, 2,741.60 and 1,211.97

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Solution

The fourth proportional to 1,830.11, 2,741.60 and 1,211.97 is: 1,815.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,830.11 : 2,741.60 = 1,211.97 : x
  2. Step 2: Convert to fraction form
    1,830.11/2,741.60 = 1,211.97/x
  3. Step 3: Cross multiply
    1,830.11x = 2,741.60 × 1,211.97
  4. Step 4: Simplify right side
    1,830.11x = 3,322,730.89
  5. Step 5: Solve for x
    x = 3,322,730.89/1,830.11
  6. Step 6: Final answer
    x = 1,815.60

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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.