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Finding the Fourth Proportional to 3,580.04, 5,369.22 and 1,388.18

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Solution

The fourth proportional to 3,580.04, 5,369.22 and 1,388.18 is: 2,081.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,580.04 : 5,369.22 = 1,388.18 : x
  2. Step 2: Convert to fraction form
    3,580.04/5,369.22 = 1,388.18/x
  3. Step 3: Cross multiply
    3,580.04x = 5,369.22 × 1,388.18
  4. Step 4: Simplify right side
    3,580.04x = 7,453,443.82
  5. Step 5: Solve for x
    x = 7,453,443.82/3,580.04
  6. Step 6: Final answer
    x = 2,081.94

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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.