Home / 7,728.26-11,591.84-4,431.02

Finding the Fourth Proportional to 7,728.26, 11,591.84 and 4,431.02

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Solution

The fourth proportional to 7,728.26, 11,591.84 and 4,431.02 is: 6,646.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,728.26 : 11,591.84 = 4,431.02 : x
  2. Step 2: Convert to fraction form
    7,728.26/11,591.84 = 4,431.02/x
  3. Step 3: Cross multiply
    7,728.26x = 11,591.84 × 4,431.02
  4. Step 4: Simplify right side
    7,728.26x = 51,363,674.88
  5. Step 5: Solve for x
    x = 51,363,674.88/7,728.26
  6. Step 6: Final answer
    x = 6,646.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.