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Finding the Fourth Proportional to 7,907.74, 11,860.27 and 2,642.28

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Solution

The fourth proportional to 7,907.74, 11,860.27 and 2,642.28 is: 3,962.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,907.74 : 11,860.27 = 2,642.28 : x
  2. Step 2: Convert to fraction form
    7,907.74/11,860.27 = 2,642.28/x
  3. Step 3: Cross multiply
    7,907.74x = 11,860.27 × 2,642.28
  4. Step 4: Simplify right side
    7,907.74x = 31,338,154.22
  5. Step 5: Solve for x
    x = 31,338,154.22/7,907.74
  6. Step 6: Final answer
    x = 3,962.97

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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.