Home / 2,631.19-3,627.70-1,863

Finding the Fourth Proportional to 2,631.19, 3,627.70 and 1,863

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Solution

The fourth proportional to 2,631.19, 3,627.70 and 1,863 is: 2,568.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,631.19 : 3,627.70 = 1,863 : x
  2. Step 2: Convert to fraction form
    2,631.19/3,627.70 = 1,863/x
  3. Step 3: Cross multiply
    2,631.19x = 3,627.70 × 1,863
  4. Step 4: Simplify right side
    2,631.19x = 6,758,400.44
  5. Step 5: Solve for x
    x = 6,758,400.44/2,631.19
  6. Step 6: Final answer
    x = 2,568.57

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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.