Home / 7,919.36-10,928.88-4,382.81

Finding the Fourth Proportional to 7,919.36, 10,928.88 and 4,382.81

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Solution

The fourth proportional to 7,919.36, 10,928.88 and 4,382.81 is: 6,048.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,919.36 : 10,928.88 = 4,382.81 : x
  2. Step 2: Convert to fraction form
    7,919.36/10,928.88 = 4,382.81/x
  3. Step 3: Cross multiply
    7,919.36x = 10,928.88 × 4,382.81
  4. Step 4: Simplify right side
    7,919.36x = 47,899,149.91
  5. Step 5: Solve for x
    x = 47,899,149.91/7,919.36
  6. Step 6: Final answer
    x = 6,048.37

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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.