Home / 1,435.07-2,147.16-850.38

Finding the Fourth Proportional to 1,435.07, 2,147.16 and 850.38

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Solution

The fourth proportional to 1,435.07, 2,147.16 and 850.38 is: 1,272.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,435.07 : 2,147.16 = 850.38 : x
  2. Step 2: Convert to fraction form
    1,435.07/2,147.16 = 850.38/x
  3. Step 3: Cross multiply
    1,435.07x = 2,147.16 × 850.38
  4. Step 4: Simplify right side
    1,435.07x = 1,825,901.92
  5. Step 5: Solve for x
    x = 1,825,901.92/1,435.07
  6. Step 6: Final answer
    x = 1,272.35

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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.