Home / 3,018.21-4,529.21-1,286.84

Finding the Fourth Proportional to 3,018.21, 4,529.21 and 1,286.84

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Solution

The fourth proportional to 3,018.21, 4,529.21 and 1,286.84 is: 1,931.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,018.21 : 4,529.21 = 1,286.84 : x
  2. Step 2: Convert to fraction form
    3,018.21/4,529.21 = 1,286.84/x
  3. Step 3: Cross multiply
    3,018.21x = 4,529.21 × 1,286.84
  4. Step 4: Simplify right side
    3,018.21x = 5,828,339.52
  5. Step 5: Solve for x
    x = 5,828,339.52/3,018.21
  6. Step 6: Final answer
    x = 1,931.06

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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.