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Finding the Fourth Proportional to 7,394.58, 11,090.19 and 2,129.58

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Solution

The fourth proportional to 7,394.58, 11,090.19 and 2,129.58 is: 3,193.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,394.58 : 11,090.19 = 2,129.58 : x
  2. Step 2: Convert to fraction form
    7,394.58/11,090.19 = 2,129.58/x
  3. Step 3: Cross multiply
    7,394.58x = 11,090.19 × 2,129.58
  4. Step 4: Simplify right side
    7,394.58x = 23,617,446.82
  5. Step 5: Solve for x
    x = 23,617,446.82/7,394.58
  6. Step 6: Final answer
    x = 3,193.89

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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.