Home / 4,885.38-7,322.40-3,786.21

Finding the Fourth Proportional to 4,885.38, 7,322.40 and 3,786.21

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Solution

The fourth proportional to 4,885.38, 7,322.40 and 3,786.21 is: 5,674.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,885.38 : 7,322.40 = 3,786.21 : x
  2. Step 2: Convert to fraction form
    4,885.38/7,322.40 = 3,786.21/x
  3. Step 3: Cross multiply
    4,885.38x = 7,322.40 × 3,786.21
  4. Step 4: Simplify right side
    4,885.38x = 27,724,144.10
  5. Step 5: Solve for x
    x = 27,724,144.10/4,885.38
  6. Step 6: Final answer
    x = 5,674.92

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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.