Home / 6,200.28-8,556.36-3,405.72

Finding the Fourth Proportional to 6,200.28, 8,556.36 and 3,405.72

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Solution

The fourth proportional to 6,200.28, 8,556.36 and 3,405.72 is: 4,699.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,200.28 : 8,556.36 = 3,405.72 : x
  2. Step 2: Convert to fraction form
    6,200.28/8,556.36 = 3,405.72/x
  3. Step 3: Cross multiply
    6,200.28x = 8,556.36 × 3,405.72
  4. Step 4: Simplify right side
    6,200.28x = 29,140,566.38
  5. Step 5: Solve for x
    x = 29,140,566.38/6,200.28
  6. Step 6: Final answer
    x = 4,699.88

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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.