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Finding the Fourth Proportional to 6,253.44, 8,629.69 and 3,420.87

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Solution

The fourth proportional to 6,253.44, 8,629.69 and 3,420.87 is: 4,720.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,253.44 : 8,629.69 = 3,420.87 : x
  2. Step 2: Convert to fraction form
    6,253.44/8,629.69 = 3,420.87/x
  3. Step 3: Cross multiply
    6,253.44x = 8,629.69 × 3,420.87
  4. Step 4: Simplify right side
    6,253.44x = 29,521,047.63
  5. Step 5: Solve for x
    x = 29,521,047.63/6,253.44
  6. Step 6: Final answer
    x = 4,720.77

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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.