Home / 1,211.07-1,814.45-634.35

Finding the Fourth Proportional to 1,211.07, 1,814.45 and 634.35

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Solution

The fourth proportional to 1,211.07, 1,814.45 and 634.35 is: 950.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211.07 : 1,814.45 = 634.35 : x
  2. Step 2: Convert to fraction form
    1,211.07/1,814.45 = 634.35/x
  3. Step 3: Cross multiply
    1,211.07x = 1,814.45 × 634.35
  4. Step 4: Simplify right side
    1,211.07x = 1,150,993.19
  5. Step 5: Solve for x
    x = 1,150,993.19/1,211.07
  6. Step 6: Final answer
    x = 950.39

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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.