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Finding the Fourth Proportional to 2,889.78, 4,334.22 and 941.55

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Solution

The fourth proportional to 2,889.78, 4,334.22 and 941.55 is: 1,412.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,889.78 : 4,334.22 = 941.55 : x
  2. Step 2: Convert to fraction form
    2,889.78/4,334.22 = 941.55/x
  3. Step 3: Cross multiply
    2,889.78x = 4,334.22 × 941.55
  4. Step 4: Simplify right side
    2,889.78x = 4,080,884.84
  5. Step 5: Solve for x
    x = 4,080,884.84/2,889.78
  6. Step 6: Final answer
    x = 1,412.18

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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.