Home / 1,211.82-1,664.24-1,014.99

Finding the Fourth Proportional to 1,211.82, 1,664.24 and 1,014.99

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Solution

The fourth proportional to 1,211.82, 1,664.24 and 1,014.99 is: 1,393.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211.82 : 1,664.24 = 1,014.99 : x
  2. Step 2: Convert to fraction form
    1,211.82/1,664.24 = 1,014.99/x
  3. Step 3: Cross multiply
    1,211.82x = 1,664.24 × 1,014.99
  4. Step 4: Simplify right side
    1,211.82x = 1,689,186.96
  5. Step 5: Solve for x
    x = 1,689,186.96/1,211.82
  6. Step 6: Final answer
    x = 1,393.93

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.