Home / 7,724.97-10,660.42-4,188.18

Finding the Fourth Proportional to 7,724.97, 10,660.42 and 4,188.18

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Solution

The fourth proportional to 7,724.97, 10,660.42 and 4,188.18 is: 5,779.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,724.97 : 10,660.42 = 4,188.18 : x
  2. Step 2: Convert to fraction form
    7,724.97/10,660.42 = 4,188.18/x
  3. Step 3: Cross multiply
    7,724.97x = 10,660.42 × 4,188.18
  4. Step 4: Simplify right side
    7,724.97x = 44,647,743.08
  5. Step 5: Solve for x
    x = 44,647,743.08/7,724.97
  6. Step 6: Final answer
    x = 5,779.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.