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Finding the Fourth Proportional to 2,837.27, 4,255.90 and 889.47

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Solution

The fourth proportional to 2,837.27, 4,255.90 and 889.47 is: 1,334.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,837.27 : 4,255.90 = 889.47 : x
  2. Step 2: Convert to fraction form
    2,837.27/4,255.90 = 889.47/x
  3. Step 3: Cross multiply
    2,837.27x = 4,255.90 × 889.47
  4. Step 4: Simplify right side
    2,837.27x = 3,785,495.37
  5. Step 5: Solve for x
    x = 3,785,495.37/2,837.27
  6. Step 6: Final answer
    x = 1,334.20

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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.