Home / 3,813.12-5,262.39-2,135.07

Finding the Fourth Proportional to 3,813.12, 5,262.39 and 2,135.07

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Solution

The fourth proportional to 3,813.12, 5,262.39 and 2,135.07 is: 2,946.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,813.12 : 5,262.39 = 2,135.07 : x
  2. Step 2: Convert to fraction form
    3,813.12/5,262.39 = 2,135.07/x
  3. Step 3: Cross multiply
    3,813.12x = 5,262.39 × 2,135.07
  4. Step 4: Simplify right side
    3,813.12x = 11,235,571.02
  5. Step 5: Solve for x
    x = 11,235,571.02/3,813.12
  6. Step 6: Final answer
    x = 2,946.56

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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.