Home / 6,422.72-8,857.41-4,930.70

Finding the Fourth Proportional to 6,422.72, 8,857.41 and 4,930.70

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Solution

The fourth proportional to 6,422.72, 8,857.41 and 4,930.70 is: 6,799.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,422.72 : 8,857.41 = 4,930.70 : x
  2. Step 2: Convert to fraction form
    6,422.72/8,857.41 = 4,930.70/x
  3. Step 3: Cross multiply
    6,422.72x = 8,857.41 × 4,930.70
  4. Step 4: Simplify right side
    6,422.72x = 43,673,231.49
  5. Step 5: Solve for x
    x = 43,673,231.49/6,422.72
  6. Step 6: Final answer
    x = 6,799.80

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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.