Home / 3,639.00-5,021.84-2,126.65

Finding the Fourth Proportional to 3,639.00, 5,021.84 and 2,126.65

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Solution

The fourth proportional to 3,639.00, 5,021.84 and 2,126.65 is: 2,934.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.00 : 5,021.84 = 2,126.65 : x
  2. Step 2: Convert to fraction form
    3,639.00/5,021.84 = 2,126.65/x
  3. Step 3: Cross multiply
    3,639.00x = 5,021.84 × 2,126.65
  4. Step 4: Simplify right side
    3,639.00x = 10,679,692.23
  5. Step 5: Solve for x
    x = 10,679,692.23/3,639.00
  6. Step 6: Final answer
    x = 2,934.79

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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.