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Finding the Fourth Proportional to 3,885.03, 5,827.07 and 1,111.66

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Solution

The fourth proportional to 3,885.03, 5,827.07 and 1,111.66 is: 1,667.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,885.03 : 5,827.07 = 1,111.66 : x
  2. Step 2: Convert to fraction form
    3,885.03/5,827.07 = 1,111.66/x
  3. Step 3: Cross multiply
    3,885.03x = 5,827.07 × 1,111.66
  4. Step 4: Simplify right side
    3,885.03x = 6,477,708.85
  5. Step 5: Solve for x
    x = 6,477,708.85/3,885.03
  6. Step 6: Final answer
    x = 1,667.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.