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Finding the Fourth Proportional to 3,924.67, 5,880.39 and 1,947.67

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Solution

The fourth proportional to 3,924.67, 5,880.39 and 1,947.67 is: 2,918.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,924.67 : 5,880.39 = 1,947.67 : x
  2. Step 2: Convert to fraction form
    3,924.67/5,880.39 = 1,947.67/x
  3. Step 3: Cross multiply
    3,924.67x = 5,880.39 × 1,947.67
  4. Step 4: Simplify right side
    3,924.67x = 11,453,059.19
  5. Step 5: Solve for x
    x = 11,453,059.19/3,924.67
  6. Step 6: Final answer
    x = 2,918.22

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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.