Home / 1,305.35-1,969.66-1,254.72

Finding the Fourth Proportional to 1,305.35, 1,969.66 and 1,254.72

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Solution

The fourth proportional to 1,305.35, 1,969.66 and 1,254.72 is: 1,893.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,305.35 : 1,969.66 = 1,254.72 : x
  2. Step 2: Convert to fraction form
    1,305.35/1,969.66 = 1,254.72/x
  3. Step 3: Cross multiply
    1,305.35x = 1,969.66 × 1,254.72
  4. Step 4: Simplify right side
    1,305.35x = 2,471,368.66
  5. Step 5: Solve for x
    x = 2,471,368.66/1,305.35
  6. Step 6: Final answer
    x = 1,893.27

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.