Home / 6,422.24-8,860.64-3,769.60

Finding the Fourth Proportional to 6,422.24, 8,860.64 and 3,769.60

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Solution

The fourth proportional to 6,422.24, 8,860.64 and 3,769.60 is: 5,200.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,422.24 : 8,860.64 = 3,769.60 : x
  2. Step 2: Convert to fraction form
    6,422.24/8,860.64 = 3,769.60/x
  3. Step 3: Cross multiply
    6,422.24x = 8,860.64 × 3,769.60
  4. Step 4: Simplify right side
    6,422.24x = 33,401,068.54
  5. Step 5: Solve for x
    x = 33,401,068.54/6,422.24
  6. Step 6: Final answer
    x = 5,200.84

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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.