Home / 6,221.25-8,585.73-4,125.78

Finding the Fourth Proportional to 6,221.25, 8,585.73 and 4,125.78

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Solution

The fourth proportional to 6,221.25, 8,585.73 and 4,125.78 is: 5,693.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,221.25 : 8,585.73 = 4,125.78 : x
  2. Step 2: Convert to fraction form
    6,221.25/8,585.73 = 4,125.78/x
  3. Step 3: Cross multiply
    6,221.25x = 8,585.73 × 4,125.78
  4. Step 4: Simplify right side
    6,221.25x = 35,422,833.12
  5. Step 5: Solve for x
    x = 35,422,833.12/6,221.25
  6. Step 6: Final answer
    x = 5,693.84

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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.