Home / 6,143.31-8,479.14-3,904.75

Finding the Fourth Proportional to 6,143.31, 8,479.14 and 3,904.75

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Solution

The fourth proportional to 6,143.31, 8,479.14 and 3,904.75 is: 5,389.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,143.31 : 8,479.14 = 3,904.75 : x
  2. Step 2: Convert to fraction form
    6,143.31/8,479.14 = 3,904.75/x
  3. Step 3: Cross multiply
    6,143.31x = 8,479.14 × 3,904.75
  4. Step 4: Simplify right side
    6,143.31x = 33,108,921.92
  5. Step 5: Solve for x
    x = 33,108,921.92/6,143.31
  6. Step 6: Final answer
    x = 5,389.43

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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.