Home / 5,381.32-8,072.14-1,485.73

Finding the Fourth Proportional to 5,381.32, 8,072.14 and 1,485.73

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Solution

The fourth proportional to 5,381.32, 8,072.14 and 1,485.73 is: 2,228.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,381.32 : 8,072.14 = 1,485.73 : x
  2. Step 2: Convert to fraction form
    5,381.32/8,072.14 = 1,485.73/x
  3. Step 3: Cross multiply
    5,381.32x = 8,072.14 × 1,485.73
  4. Step 4: Simplify right side
    5,381.32x = 11,993,020.56
  5. Step 5: Solve for x
    x = 11,993,020.56/5,381.32
  6. Step 6: Final answer
    x = 2,228.64

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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.