Home / 1,137.21-1,569.33-633.06

Finding the Fourth Proportional to 1,137.21, 1,569.33 and 633.06

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Solution

The fourth proportional to 1,137.21, 1,569.33 and 633.06 is: 873.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137.21 : 1,569.33 = 633.06 : x
  2. Step 2: Convert to fraction form
    1,137.21/1,569.33 = 633.06/x
  3. Step 3: Cross multiply
    1,137.21x = 1,569.33 × 633.06
  4. Step 4: Simplify right side
    1,137.21x = 993,480.05
  5. Step 5: Solve for x
    x = 993,480.05/1,137.21
  6. Step 6: Final answer
    x = 873.61

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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.