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Finding the Fourth Proportional to 6,253.48, 8,629.48 and 3,420.30

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Solution

The fourth proportional to 6,253.48, 8,629.48 and 3,420.30 is: 4,719.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,253.48 : 8,629.48 = 3,420.30 : x
  2. Step 2: Convert to fraction form
    6,253.48/8,629.48 = 3,420.30/x
  3. Step 3: Cross multiply
    6,253.48x = 8,629.48 × 3,420.30
  4. Step 4: Simplify right side
    6,253.48x = 29,515,393.34
  5. Step 5: Solve for x
    x = 29,515,393.34/6,253.48
  6. Step 6: Final answer
    x = 4,719.84

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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.