Home / 7,919.14-10,928.64-4,382.68

Finding the Fourth Proportional to 7,919.14, 10,928.64 and 4,382.68

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Solution

The fourth proportional to 7,919.14, 10,928.64 and 4,382.68 is: 6,048.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,919.14 : 10,928.64 = 4,382.68 : x
  2. Step 2: Convert to fraction form
    7,919.14/10,928.64 = 4,382.68/x
  3. Step 3: Cross multiply
    7,919.14x = 10,928.64 × 4,382.68
  4. Step 4: Simplify right side
    7,919.14x = 47,896,731.96
  5. Step 5: Solve for x
    x = 47,896,731.96/7,919.14
  6. Step 6: Final answer
    x = 6,048.22

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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.