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Finding the Fourth Proportional to 1,049.37, 1,448.27 and 635.37

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Solution

The fourth proportional to 1,049.37, 1,448.27 and 635.37 is: 876.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,049.37 : 1,448.27 = 635.37 : x
  2. Step 2: Convert to fraction form
    1,049.37/1,448.27 = 635.37/x
  3. Step 3: Cross multiply
    1,049.37x = 1,448.27 × 635.37
  4. Step 4: Simplify right side
    1,049.37x = 920,184.13
  5. Step 5: Solve for x
    x = 920,184.13/1,049.37
  6. Step 6: Final answer
    x = 876.89

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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.