Home / 7,919.43-10,928.34-4,382.43

Finding the Fourth Proportional to 7,919.43, 10,928.34 and 4,382.43

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Solution

The fourth proportional to 7,919.43, 10,928.34 and 4,382.43 is: 6,047.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,919.43 : 10,928.34 = 4,382.43 : x
  2. Step 2: Convert to fraction form
    7,919.43/10,928.34 = 4,382.43/x
  3. Step 3: Cross multiply
    7,919.43x = 10,928.34 × 4,382.43
  4. Step 4: Simplify right side
    7,919.43x = 47,892,685.07
  5. Step 5: Solve for x
    x = 47,892,685.07/7,919.43
  6. Step 6: Final answer
    x = 6,047.49

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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.