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Finding the Fourth Proportional to 2,630.88, 3,629.58 and 1,511.58

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Solution

The fourth proportional to 2,630.88, 3,629.58 and 1,511.58 is: 2,085.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,630.88 : 3,629.58 = 1,511.58 : x
  2. Step 2: Convert to fraction form
    2,630.88/3,629.58 = 1,511.58/x
  3. Step 3: Cross multiply
    2,630.88x = 3,629.58 × 1,511.58
  4. Step 4: Simplify right side
    2,630.88x = 5,486,400.54
  5. Step 5: Solve for x
    x = 5,486,400.54/2,630.88
  6. Step 6: Final answer
    x = 2,085.39

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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.