Home / 2,801.08-4,202.70-1,261

Finding the Fourth Proportional to 2,801.08, 4,202.70 and 1,261

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Solution

The fourth proportional to 2,801.08, 4,202.70 and 1,261 is: 1,891.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,801.08 : 4,202.70 = 1,261 : x
  2. Step 2: Convert to fraction form
    2,801.08/4,202.70 = 1,261/x
  3. Step 3: Cross multiply
    2,801.08x = 4,202.70 × 1,261
  4. Step 4: Simplify right side
    2,801.08x = 5,299,604.70
  5. Step 5: Solve for x
    x = 5,299,604.70/2,801.08
  6. Step 6: Final answer
    x = 1,891.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.