Home / 1,902.45-2,611.44-1,687.94

Finding the Fourth Proportional to 1,902.45, 2,611.44 and 1,687.94

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Solution

The fourth proportional to 1,902.45, 2,611.44 and 1,687.94 is: 2,316.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,902.45 : 2,611.44 = 1,687.94 : x
  2. Step 2: Convert to fraction form
    1,902.45/2,611.44 = 1,687.94/x
  3. Step 3: Cross multiply
    1,902.45x = 2,611.44 × 1,687.94
  4. Step 4: Simplify right side
    1,902.45x = 4,407,950.77
  5. Step 5: Solve for x
    x = 4,407,950.77/1,902.45
  6. Step 6: Final answer
    x = 2,316.98

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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.