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Finding the Fourth Proportional to 3,665.03, 5,497.55 and 891.71

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Solution

The fourth proportional to 3,665.03, 5,497.55 and 891.71 is: 1,337.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,665.03 : 5,497.55 = 891.71 : x
  2. Step 2: Convert to fraction form
    3,665.03/5,497.55 = 891.71/x
  3. Step 3: Cross multiply
    3,665.03x = 5,497.55 × 891.71
  4. Step 4: Simplify right side
    3,665.03x = 4,902,212.32
  5. Step 5: Solve for x
    x = 4,902,212.32/3,665.03
  6. Step 6: Final answer
    x = 1,337.57

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