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Finding the Fourth Proportional to 7,194.21, 9,928.08 and 4,399.71

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Solution

The fourth proportional to 7,194.21, 9,928.08 and 4,399.71 is: 6,071.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,194.21 : 9,928.08 = 4,399.71 : x
  2. Step 2: Convert to fraction form
    7,194.21/9,928.08 = 4,399.71/x
  3. Step 3: Cross multiply
    7,194.21x = 9,928.08 × 4,399.71
  4. Step 4: Simplify right side
    7,194.21x = 43,680,672.86
  5. Step 5: Solve for x
    x = 43,680,672.86/7,194.21
  6. Step 6: Final answer
    x = 6,071.64

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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.