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Finding the Fourth Proportional to 1,634.44, 2,256 and 1,130.52

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Solution

The fourth proportional to 1,634.44, 2,256 and 1,130.52 is: 1,560.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,634.44 : 2,256 = 1,130.52 : x
  2. Step 2: Convert to fraction form
    1,634.44/2,256 = 1,130.52/x
  3. Step 3: Cross multiply
    1,634.44x = 2,256 × 1,130.52
  4. Step 4: Simplify right side
    1,634.44x = 2,550,453.12
  5. Step 5: Solve for x
    x = 2,550,453.12/1,634.44
  6. Step 6: Final answer
    x = 1,560.44

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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.