Home / 1,144.20-1,714.70-849.40

Finding the Fourth Proportional to 1,144.20, 1,714.70 and 849.40

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Solution

The fourth proportional to 1,144.20, 1,714.70 and 849.40 is: 1,272.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,144.20 : 1,714.70 = 849.40 : x
  2. Step 2: Convert to fraction form
    1,144.20/1,714.70 = 849.40/x
  3. Step 3: Cross multiply
    1,144.20x = 1,714.70 × 849.40
  4. Step 4: Simplify right side
    1,144.20x = 1,456,466.18
  5. Step 5: Solve for x
    x = 1,456,466.18/1,144.20
  6. Step 6: Final answer
    x = 1,272.91

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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.