Home / 1,962.36-2,705.58-1,297.98

Finding the Fourth Proportional to 1,962.36, 2,705.58 and 1,297.98

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Solution

The fourth proportional to 1,962.36, 2,705.58 and 1,297.98 is: 1,789.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,962.36 : 2,705.58 = 1,297.98 : x
  2. Step 2: Convert to fraction form
    1,962.36/2,705.58 = 1,297.98/x
  3. Step 3: Cross multiply
    1,962.36x = 2,705.58 × 1,297.98
  4. Step 4: Simplify right side
    1,962.36x = 3,511,788.73
  5. Step 5: Solve for x
    x = 3,511,788.73/1,962.36
  6. Step 6: Final answer
    x = 1,789.57

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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.