Home / 7,919.49-10,928.97-4,382.77

Finding the Fourth Proportional to 7,919.49, 10,928.97 and 4,382.77

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Solution

The fourth proportional to 7,919.49, 10,928.97 and 4,382.77 is: 6,048.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,919.49 : 10,928.97 = 4,382.77 : x
  2. Step 2: Convert to fraction form
    7,919.49/10,928.97 = 4,382.77/x
  3. Step 3: Cross multiply
    7,919.49x = 10,928.97 × 4,382.77
  4. Step 4: Simplify right side
    7,919.49x = 47,899,161.85
  5. Step 5: Solve for x
    x = 47,899,161.85/7,919.49
  6. Step 6: Final answer
    x = 6,048.26

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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.