Home / 1,961.08-2,705.60-1,214.26

Finding the Fourth Proportional to 1,961.08, 2,705.60 and 1,214.26

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Solution

The fourth proportional to 1,961.08, 2,705.60 and 1,214.26 is: 1,675.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,961.08 : 2,705.60 = 1,214.26 : x
  2. Step 2: Convert to fraction form
    1,961.08/2,705.60 = 1,214.26/x
  3. Step 3: Cross multiply
    1,961.08x = 2,705.60 × 1,214.26
  4. Step 4: Simplify right side
    1,961.08x = 3,285,301.86
  5. Step 5: Solve for x
    x = 3,285,301.86/1,961.08
  6. Step 6: Final answer
    x = 1,675.25

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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.