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Finding the Fourth Proportional to 5,479.98, 7,562.34 and 3,122.07

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Solution

The fourth proportional to 5,479.98, 7,562.34 and 3,122.07 is: 4,308.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,479.98 : 7,562.34 = 3,122.07 : x
  2. Step 2: Convert to fraction form
    5,479.98/7,562.34 = 3,122.07/x
  3. Step 3: Cross multiply
    5,479.98x = 7,562.34 × 3,122.07
  4. Step 4: Simplify right side
    5,479.98x = 23,610,154.84
  5. Step 5: Solve for x
    x = 23,610,154.84/5,479.98
  6. Step 6: Final answer
    x = 4,308.44

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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.