Home / 1,915.26-2,873.76-1,136.80

Finding the Fourth Proportional to 1,915.26, 2,873.76 and 1,136.80

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Solution

The fourth proportional to 1,915.26, 2,873.76 and 1,136.80 is: 1,705.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915.26 : 2,873.76 = 1,136.80 : x
  2. Step 2: Convert to fraction form
    1,915.26/2,873.76 = 1,136.80/x
  3. Step 3: Cross multiply
    1,915.26x = 2,873.76 × 1,136.80
  4. Step 4: Simplify right side
    1,915.26x = 3,266,890.37
  5. Step 5: Solve for x
    x = 3,266,890.37/1,915.26
  6. Step 6: Final answer
    x = 1,705.72

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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.