Home / 7,928.70-10,940.49-4,392.12

Finding the Fourth Proportional to 7,928.70, 10,940.49 and 4,392.12

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Solution

The fourth proportional to 7,928.70, 10,940.49 and 4,392.12 is: 6,060.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,928.70 : 10,940.49 = 4,392.12 : x
  2. Step 2: Convert to fraction form
    7,928.70/10,940.49 = 4,392.12/x
  3. Step 3: Cross multiply
    7,928.70x = 10,940.49 × 4,392.12
  4. Step 4: Simplify right side
    7,928.70x = 48,051,944.94
  5. Step 5: Solve for x
    x = 48,051,944.94/7,928.70
  6. Step 6: Final answer
    x = 6,060.51

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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.