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Finding the Fourth Proportional to 4,945.44, 7,422.48 and 2,756.32

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Solution

The fourth proportional to 4,945.44, 7,422.48 and 2,756.32 is: 4,136.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,945.44 : 7,422.48 = 2,756.32 : x
  2. Step 2: Convert to fraction form
    4,945.44/7,422.48 = 2,756.32/x
  3. Step 3: Cross multiply
    4,945.44x = 7,422.48 × 2,756.32
  4. Step 4: Simplify right side
    4,945.44x = 20,458,730.07
  5. Step 5: Solve for x
    x = 20,458,730.07/4,945.44
  6. Step 6: Final answer
    x = 4,136.89

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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.