Home / 6,422.49-8,863.67-3,904.38

Finding the Fourth Proportional to 6,422.49, 8,863.67 and 3,904.38

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Solution

The fourth proportional to 6,422.49, 8,863.67 and 3,904.38 is: 5,388.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,422.49 : 8,863.67 = 3,904.38 : x
  2. Step 2: Convert to fraction form
    6,422.49/8,863.67 = 3,904.38/x
  3. Step 3: Cross multiply
    6,422.49x = 8,863.67 × 3,904.38
  4. Step 4: Simplify right side
    6,422.49x = 34,607,116.35
  5. Step 5: Solve for x
    x = 34,607,116.35/6,422.49
  6. Step 6: Final answer
    x = 5,388.43

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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.