Home / 7,905.62-11,859.64-2,975.60

Finding the Fourth Proportional to 7,905.62, 11,859.64 and 2,975.60

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Solution

The fourth proportional to 7,905.62, 11,859.64 and 2,975.60 is: 4,463.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,905.62 : 11,859.64 = 2,975.60 : x
  2. Step 2: Convert to fraction form
    7,905.62/11,859.64 = 2,975.60/x
  3. Step 3: Cross multiply
    7,905.62x = 11,859.64 × 2,975.60
  4. Step 4: Simplify right side
    7,905.62x = 35,289,544.78
  5. Step 5: Solve for x
    x = 35,289,544.78/7,905.62
  6. Step 6: Final answer
    x = 4,463.86

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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.