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Finding the Fourth Proportional to 4,890.44, 7,339.26 and 2,811.44

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Solution

The fourth proportional to 4,890.44, 7,339.26 and 2,811.44 is: 4,219.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,890.44 : 7,339.26 = 2,811.44 : x
  2. Step 2: Convert to fraction form
    4,890.44/7,339.26 = 2,811.44/x
  3. Step 3: Cross multiply
    4,890.44x = 7,339.26 × 2,811.44
  4. Step 4: Simplify right side
    4,890.44x = 20,633,889.13
  5. Step 5: Solve for x
    x = 20,633,889.13/4,890.44
  6. Step 6: Final answer
    x = 4,219.23

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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.