Home / 5,257.21-7,885.64-2,136.29

Finding the Fourth Proportional to 5,257.21, 7,885.64 and 2,136.29

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Solution

The fourth proportional to 5,257.21, 7,885.64 and 2,136.29 is: 3,204.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,257.21 : 7,885.64 = 2,136.29 : x
  2. Step 2: Convert to fraction form
    5,257.21/7,885.64 = 2,136.29/x
  3. Step 3: Cross multiply
    5,257.21x = 7,885.64 × 2,136.29
  4. Step 4: Simplify right side
    5,257.21x = 16,845,963.77
  5. Step 5: Solve for x
    x = 16,845,963.77/5,257.21
  6. Step 6: Final answer
    x = 3,204.36

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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.