Home / 6,253.28-8,629.36-3,420.60

Finding the Fourth Proportional to 6,253.28, 8,629.36 and 3,420.60

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Solution

The fourth proportional to 6,253.28, 8,629.36 and 3,420.60 is: 4,720.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,253.28 : 8,629.36 = 3,420.60 : x
  2. Step 2: Convert to fraction form
    6,253.28/8,629.36 = 3,420.60/x
  3. Step 3: Cross multiply
    6,253.28x = 8,629.36 × 3,420.60
  4. Step 4: Simplify right side
    6,253.28x = 29,517,588.82
  5. Step 5: Solve for x
    x = 29,517,588.82/6,253.28
  6. Step 6: Final answer
    x = 4,720.34

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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.