Home / 6,221.55-8,585.57-3,388.88

Finding the Fourth Proportional to 6,221.55, 8,585.57 and 3,388.88

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Solution

The fourth proportional to 6,221.55, 8,585.57 and 3,388.88 is: 4,676.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,221.55 : 8,585.57 = 3,388.88 : x
  2. Step 2: Convert to fraction form
    6,221.55/8,585.57 = 3,388.88/x
  3. Step 3: Cross multiply
    6,221.55x = 8,585.57 × 3,388.88
  4. Step 4: Simplify right side
    6,221.55x = 29,095,406.59
  5. Step 5: Solve for x
    x = 29,095,406.59/6,221.55
  6. Step 6: Final answer
    x = 4,676.55

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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.