Home / 1,207.03-1,818.66-1,091.61

Finding the Fourth Proportional to 1,207.03, 1,818.66 and 1,091.61

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Solution

The fourth proportional to 1,207.03, 1,818.66 and 1,091.61 is: 1,644.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207.03 : 1,818.66 = 1,091.61 : x
  2. Step 2: Convert to fraction form
    1,207.03/1,818.66 = 1,091.61/x
  3. Step 3: Cross multiply
    1,207.03x = 1,818.66 × 1,091.61
  4. Step 4: Simplify right side
    1,207.03x = 1,985,267.44
  5. Step 5: Solve for x
    x = 1,985,267.44/1,207.03
  6. Step 6: Final answer
    x = 1,644.75

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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.