Home / 1,211.64-1,804.92-1,175.34

Finding the Fourth Proportional to 1,211.64, 1,804.92 and 1,175.34

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Solution

The fourth proportional to 1,211.64, 1,804.92 and 1,175.34 is: 1,750.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211.64 : 1,804.92 = 1,175.34 : x
  2. Step 2: Convert to fraction form
    1,211.64/1,804.92 = 1,175.34/x
  3. Step 3: Cross multiply
    1,211.64x = 1,804.92 × 1,175.34
  4. Step 4: Simplify right side
    1,211.64x = 2,121,394.67
  5. Step 5: Solve for x
    x = 2,121,394.67/1,211.64
  6. Step 6: Final answer
    x = 1,750.85

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.