Home / 7,731.18-11,591.88-4,270.86

Finding the Fourth Proportional to 7,731.18, 11,591.88 and 4,270.86

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Solution

The fourth proportional to 7,731.18, 11,591.88 and 4,270.86 is: 6,403.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,731.18 : 11,591.88 = 4,270.86 : x
  2. Step 2: Convert to fraction form
    7,731.18/11,591.88 = 4,270.86/x
  3. Step 3: Cross multiply
    7,731.18x = 11,591.88 × 4,270.86
  4. Step 4: Simplify right side
    7,731.18x = 49,507,296.62
  5. Step 5: Solve for x
    x = 49,507,296.62/7,731.18
  6. Step 6: Final answer
    x = 6,403.59

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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.