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Finding the Fourth Proportional to 3,691.51, 5,095.51 and 2,199.89

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Solution

The fourth proportional to 3,691.51, 5,095.51 and 2,199.89 is: 3,036.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,691.51 : 5,095.51 = 2,199.89 : x
  2. Step 2: Convert to fraction form
    3,691.51/5,095.51 = 2,199.89/x
  3. Step 3: Cross multiply
    3,691.51x = 5,095.51 × 2,199.89
  4. Step 4: Simplify right side
    3,691.51x = 11,209,566.99
  5. Step 5: Solve for x
    x = 11,209,566.99/3,691.51
  6. Step 6: Final answer
    x = 3,036.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.