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Finding the Fourth Proportional to 7,065.78, 10,609.07 and 3,951.89

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Solution

The fourth proportional to 7,065.78, 10,609.07 and 3,951.89 is: 5,933.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,065.78 : 10,609.07 = 3,951.89 : x
  2. Step 2: Convert to fraction form
    7,065.78/10,609.07 = 3,951.89/x
  3. Step 3: Cross multiply
    7,065.78x = 10,609.07 × 3,951.89
  4. Step 4: Simplify right side
    7,065.78x = 41,925,824.60
  5. Step 5: Solve for x
    x = 41,925,824.60/7,065.78
  6. Step 6: Final answer
    x = 5,933.65

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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.