Home / 7,919.40-10,928.98-4,382.94

Finding the Fourth Proportional to 7,919.40, 10,928.98 and 4,382.94

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Solution

The fourth proportional to 7,919.40, 10,928.98 and 4,382.94 is: 6,048.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,919.40 : 10,928.98 = 4,382.94 : x
  2. Step 2: Convert to fraction form
    7,919.40/10,928.98 = 4,382.94/x
  3. Step 3: Cross multiply
    7,919.40x = 10,928.98 × 4,382.94
  4. Step 4: Simplify right side
    7,919.40x = 47,901,063.60
  5. Step 5: Solve for x
    x = 47,901,063.60/7,919.40
  6. Step 6: Final answer
    x = 6,048.57

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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.