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Finding the Fourth Proportional to 3,884.68, 5,826.04 and 1,111.37

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Solution

The fourth proportional to 3,884.68, 5,826.04 and 1,111.37 is: 1,666.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,884.68 : 5,826.04 = 1,111.37 : x
  2. Step 2: Convert to fraction form
    3,884.68/5,826.04 = 1,111.37/x
  3. Step 3: Cross multiply
    3,884.68x = 5,826.04 × 1,111.37
  4. Step 4: Simplify right side
    3,884.68x = 6,474,886.07
  5. Step 5: Solve for x
    x = 6,474,886.07/3,884.68
  6. Step 6: Final answer
    x = 1,666.77

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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.