Home / 3,813.87-5,263.09-2,135.27

Finding the Fourth Proportional to 3,813.87, 5,263.09 and 2,135.27

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Solution

The fourth proportional to 3,813.87, 5,263.09 and 2,135.27 is: 2,946.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,813.87 : 5,263.09 = 2,135.27 : x
  2. Step 2: Convert to fraction form
    3,813.87/5,263.09 = 2,135.27/x
  3. Step 3: Cross multiply
    3,813.87x = 5,263.09 × 2,135.27
  4. Step 4: Simplify right side
    3,813.87x = 11,238,136.41
  5. Step 5: Solve for x
    x = 11,238,136.41/3,813.87
  6. Step 6: Final answer
    x = 2,946.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.