Home / 5,136.06-7,087.36-2,897.82

Finding the Fourth Proportional to 5,136.06, 7,087.36 and 2,897.82

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Solution

The fourth proportional to 5,136.06, 7,087.36 and 2,897.82 is: 3,998.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,136.06 : 7,087.36 = 2,897.82 : x
  2. Step 2: Convert to fraction form
    5,136.06/7,087.36 = 2,897.82/x
  3. Step 3: Cross multiply
    5,136.06x = 7,087.36 × 2,897.82
  4. Step 4: Simplify right side
    5,136.06x = 20,537,893.56
  5. Step 5: Solve for x
    x = 20,537,893.56/5,136.06
  6. Step 6: Final answer
    x = 3,998.76

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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.