Home / 3,813.82-5,262.98-2,135.28

Finding the Fourth Proportional to 3,813.82, 5,262.98 and 2,135.28

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Solution

The fourth proportional to 3,813.82, 5,262.98 and 2,135.28 is: 2,946.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,813.82 : 5,262.98 = 2,135.28 : x
  2. Step 2: Convert to fraction form
    3,813.82/5,262.98 = 2,135.28/x
  3. Step 3: Cross multiply
    3,813.82x = 5,262.98 × 2,135.28
  4. Step 4: Simplify right side
    3,813.82x = 11,237,935.93
  5. Step 5: Solve for x
    x = 11,237,935.93/3,813.82
  6. Step 6: Final answer
    x = 2,946.64

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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.