Home / 1,804.54-2,488.66-1,215.88

Finding the Fourth Proportional to 1,804.54, 2,488.66 and 1,215.88

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Solution

The fourth proportional to 1,804.54, 2,488.66 and 1,215.88 is: 1,676.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,804.54 : 2,488.66 = 1,215.88 : x
  2. Step 2: Convert to fraction form
    1,804.54/2,488.66 = 1,215.88/x
  3. Step 3: Cross multiply
    1,804.54x = 2,488.66 × 1,215.88
  4. Step 4: Simplify right side
    1,804.54x = 3,025,911.92
  5. Step 5: Solve for x
    x = 3,025,911.92/1,804.54
  6. Step 6: Final answer
    x = 1,676.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.