Home / 3,885.04-5,823.84-1,286.56

Finding the Fourth Proportional to 3,885.04, 5,823.84 and 1,286.56

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Solution

The fourth proportional to 3,885.04, 5,823.84 and 1,286.56 is: 1,928.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,885.04 : 5,823.84 = 1,286.56 : x
  2. Step 2: Convert to fraction form
    3,885.04/5,823.84 = 1,286.56/x
  3. Step 3: Cross multiply
    3,885.04x = 5,823.84 × 1,286.56
  4. Step 4: Simplify right side
    3,885.04x = 7,492,719.59
  5. Step 5: Solve for x
    x = 7,492,719.59/3,885.04
  6. Step 6: Final answer
    x = 1,928.61

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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.