Home / 1,133.18-1,563.77-635.82

Finding the Fourth Proportional to 1,133.18, 1,563.77 and 635.82

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Solution

The fourth proportional to 1,133.18, 1,563.77 and 635.82 is: 877.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,133.18 : 1,563.77 = 635.82 : x
  2. Step 2: Convert to fraction form
    1,133.18/1,563.77 = 635.82/x
  3. Step 3: Cross multiply
    1,133.18x = 1,563.77 × 635.82
  4. Step 4: Simplify right side
    1,133.18x = 994,271.97
  5. Step 5: Solve for x
    x = 994,271.97/1,133.18
  6. Step 6: Final answer
    x = 877.42

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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.