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Finding the Fourth Proportional to 7,208.40, 9,946.44 and 4,063.98

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Solution

The fourth proportional to 7,208.40, 9,946.44 and 4,063.98 is: 5,607.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,208.40 : 9,946.44 = 4,063.98 : x
  2. Step 2: Convert to fraction form
    7,208.40/9,946.44 = 4,063.98/x
  3. Step 3: Cross multiply
    7,208.40x = 9,946.44 × 4,063.98
  4. Step 4: Simplify right side
    7,208.40x = 40,422,133.23
  5. Step 5: Solve for x
    x = 40,422,133.23/7,208.40
  6. Step 6: Final answer
    x = 5,607.64

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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.