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Finding the Fourth Proportional to 6,377.30, 8,798.21 and 4,702.67

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Solution

The fourth proportional to 6,377.30, 8,798.21 and 4,702.67 is: 6,487.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,377.30 : 8,798.21 = 4,702.67 : x
  2. Step 2: Convert to fraction form
    6,377.30/8,798.21 = 4,702.67/x
  3. Step 3: Cross multiply
    6,377.30x = 8,798.21 × 4,702.67
  4. Step 4: Simplify right side
    6,377.30x = 41,375,078.22
  5. Step 5: Solve for x
    x = 41,375,078.22/6,377.30
  6. Step 6: Final answer
    x = 6,487.87

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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.