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Finding the Fourth Proportional to 3,453, 4,763.22 and 2,256.32

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Solution

The fourth proportional to 3,453, 4,763.22 and 2,256.32 is: 3,112.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,453 : 4,763.22 = 2,256.32 : x
  2. Step 2: Convert to fraction form
    3,453/4,763.22 = 2,256.32/x
  3. Step 3: Cross multiply
    3,453x = 4,763.22 × 2,256.32
  4. Step 4: Simplify right side
    3,453x = 10,747,348.55
  5. Step 5: Solve for x
    x = 10,747,348.55/3,453
  6. Step 6: Final answer
    x = 3,112.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.