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Finding the Fourth Proportional to 6,397.92, 8,830.26 and 5,081.67

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Solution

The fourth proportional to 6,397.92, 8,830.26 and 5,081.67 is: 7,013.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,397.92 : 8,830.26 = 5,081.67 : x
  2. Step 2: Convert to fraction form
    6,397.92/8,830.26 = 5,081.67/x
  3. Step 3: Cross multiply
    6,397.92x = 8,830.26 × 5,081.67
  4. Step 4: Simplify right side
    6,397.92x = 44,872,467.33
  5. Step 5: Solve for x
    x = 44,872,467.33/6,397.92
  6. Step 6: Final answer
    x = 7,013.60

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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.