Home / 5,136.19-7,704.27-1,240.60

Finding the Fourth Proportional to 5,136.19, 7,704.27 and 1,240.60

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Solution

The fourth proportional to 5,136.19, 7,704.27 and 1,240.60 is: 1,860.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,136.19 : 7,704.27 = 1,240.60 : x
  2. Step 2: Convert to fraction form
    5,136.19/7,704.27 = 1,240.60/x
  3. Step 3: Cross multiply
    5,136.19x = 7,704.27 × 1,240.60
  4. Step 4: Simplify right side
    5,136.19x = 9,557,898.10
  5. Step 5: Solve for x
    x = 9,557,898.10/5,136.19
  6. Step 6: Final answer
    x = 1,860.89

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1.5x scale

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.