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Finding the Fourth Proportional to 7,279.08, 10,918.62 and 2,659.56

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Solution

The fourth proportional to 7,279.08, 10,918.62 and 2,659.56 is: 3,989.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,279.08 : 10,918.62 = 2,659.56 : x
  2. Step 2: Convert to fraction form
    7,279.08/10,918.62 = 2,659.56/x
  3. Step 3: Cross multiply
    7,279.08x = 10,918.62 × 2,659.56
  4. Step 4: Simplify right side
    7,279.08x = 29,038,725.01
  5. Step 5: Solve for x
    x = 29,038,725.01/7,279.08
  6. Step 6: Final answer
    x = 3,989.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.