Home / 2,631.83-3,631.58-1,512.60

Finding the Fourth Proportional to 2,631.83, 3,631.58 and 1,512.60

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Solution

The fourth proportional to 2,631.83, 3,631.58 and 1,512.60 is: 2,087.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,631.83 : 3,631.58 = 1,512.60 : x
  2. Step 2: Convert to fraction form
    2,631.83/3,631.58 = 1,512.60/x
  3. Step 3: Cross multiply
    2,631.83x = 3,631.58 × 1,512.60
  4. Step 4: Simplify right side
    2,631.83x = 5,493,120.35
  5. Step 5: Solve for x
    x = 5,493,120.35/2,631.83
  6. Step 6: Final answer
    x = 2,087.19

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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.