Home / 3,758.94-5,639.21-1,126.65

Finding the Fourth Proportional to 3,758.94, 5,639.21 and 1,126.65

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Solution

The fourth proportional to 3,758.94, 5,639.21 and 1,126.65 is: 1,690.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,758.94 : 5,639.21 = 1,126.65 : x
  2. Step 2: Convert to fraction form
    3,758.94/5,639.21 = 1,126.65/x
  3. Step 3: Cross multiply
    3,758.94x = 5,639.21 × 1,126.65
  4. Step 4: Simplify right side
    3,758.94x = 6,353,415.95
  5. Step 5: Solve for x
    x = 6,353,415.95/3,758.94
  6. Step 6: Final answer
    x = 1,690.21

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1.5x scale

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.