Home / 7,919.11-10,928.54-4,382.56

Finding the Fourth Proportional to 7,919.11, 10,928.54 and 4,382.56

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Solution

The fourth proportional to 7,919.11, 10,928.54 and 4,382.56 is: 6,048.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,919.11 : 10,928.54 = 4,382.56 : x
  2. Step 2: Convert to fraction form
    7,919.11/10,928.54 = 4,382.56/x
  3. Step 3: Cross multiply
    7,919.11x = 10,928.54 × 4,382.56
  4. Step 4: Simplify right side
    7,919.11x = 47,894,982.26
  5. Step 5: Solve for x
    x = 47,894,982.26/7,919.11
  6. Step 6: Final answer
    x = 6,048.03

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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.