Home / 3,136.56-4,704.69-1,287.60

Finding the Fourth Proportional to 3,136.56, 4,704.69 and 1,287.60

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Solution

The fourth proportional to 3,136.56, 4,704.69 and 1,287.60 is: 1,931.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,136.56 : 4,704.69 = 1,287.60 : x
  2. Step 2: Convert to fraction form
    3,136.56/4,704.69 = 1,287.60/x
  3. Step 3: Cross multiply
    3,136.56x = 4,704.69 × 1,287.60
  4. Step 4: Simplify right side
    3,136.56x = 6,057,758.84
  5. Step 5: Solve for x
    x = 6,057,758.84/3,136.56
  6. Step 6: Final answer
    x = 1,931.34

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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.