Home / 7,928.16-10,940.96-4,391.68

Finding the Fourth Proportional to 7,928.16, 10,940.96 and 4,391.68

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Solution

The fourth proportional to 7,928.16, 10,940.96 and 4,391.68 is: 6,060.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,928.16 : 10,940.96 = 4,391.68 : x
  2. Step 2: Convert to fraction form
    7,928.16/10,940.96 = 4,391.68/x
  3. Step 3: Cross multiply
    7,928.16x = 10,940.96 × 4,391.68
  4. Step 4: Simplify right side
    7,928.16x = 48,049,195.21
  5. Step 5: Solve for x
    x = 48,049,195.21/7,928.16
  6. Step 6: Final answer
    x = 6,060.57

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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.