Home / 3,136.87-4,704.32-1,135.31

Finding the Fourth Proportional to 3,136.87, 4,704.32 and 1,135.31

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Solution

The fourth proportional to 3,136.87, 4,704.32 and 1,135.31 is: 1,702.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,136.87 : 4,704.32 = 1,135.31 : x
  2. Step 2: Convert to fraction form
    3,136.87/4,704.32 = 1,135.31/x
  3. Step 3: Cross multiply
    3,136.87x = 4,704.32 × 1,135.31
  4. Step 4: Simplify right side
    3,136.87x = 5,340,835.18
  5. Step 5: Solve for x
    x = 5,340,835.18/3,136.87
  6. Step 6: Final answer
    x = 1,702.60

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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.