Home / 6,422.37-8,863.21-3,904.07

Finding the Fourth Proportional to 6,422.37, 8,863.21 and 3,904.07

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Solution

The fourth proportional to 6,422.37, 8,863.21 and 3,904.07 is: 5,387.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,422.37 : 8,863.21 = 3,904.07 : x
  2. Step 2: Convert to fraction form
    6,422.37/8,863.21 = 3,904.07/x
  3. Step 3: Cross multiply
    6,422.37x = 8,863.21 × 3,904.07
  4. Step 4: Simplify right side
    6,422.37x = 34,602,571.43
  5. Step 5: Solve for x
    x = 34,602,571.43/6,422.37
  6. Step 6: Final answer
    x = 5,387.82

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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.