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Finding the Fourth Proportional to 7,279.06, 10,045.12 and 3,967.06

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Solution

The fourth proportional to 7,279.06, 10,045.12 and 3,967.06 is: 5,474.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,279.06 : 10,045.12 = 3,967.06 : x
  2. Step 2: Convert to fraction form
    7,279.06/10,045.12 = 3,967.06/x
  3. Step 3: Cross multiply
    7,279.06x = 10,045.12 × 3,967.06
  4. Step 4: Simplify right side
    7,279.06x = 39,849,593.75
  5. Step 5: Solve for x
    x = 39,849,593.75/7,279.06
  6. Step 6: Final answer
    x = 5,474.55

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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.