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Finding the Fourth Proportional to 7,222.43, 9,975.18 and 4,860.47

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Solution

The fourth proportional to 7,222.43, 9,975.18 and 4,860.47 is: 6,712.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,222.43 : 9,975.18 = 4,860.47 : x
  2. Step 2: Convert to fraction form
    7,222.43/9,975.18 = 4,860.47/x
  3. Step 3: Cross multiply
    7,222.43x = 9,975.18 × 4,860.47
  4. Step 4: Simplify right side
    7,222.43x = 48,484,063.13
  5. Step 5: Solve for x
    x = 48,484,063.13/7,222.43
  6. Step 6: Final answer
    x = 6,712.98

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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.