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Finding the Fourth Proportional to 7,230.60, 9,980.01 and 4,247.37

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Solution

The fourth proportional to 7,230.60, 9,980.01 and 4,247.37 is: 5,862.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,230.60 : 9,980.01 = 4,247.37 : x
  2. Step 2: Convert to fraction form
    7,230.60/9,980.01 = 4,247.37/x
  3. Step 3: Cross multiply
    7,230.60x = 9,980.01 × 4,247.37
  4. Step 4: Simplify right side
    7,230.60x = 42,388,795.07
  5. Step 5: Solve for x
    x = 42,388,795.07/7,230.60
  6. Step 6: Final answer
    x = 5,862.42

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