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Finding the Fourth Proportional to 6,249.74, 8,615.75 and 4,257.75

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Solution

The fourth proportional to 6,249.74, 8,615.75 and 4,257.75 is: 5,869.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,249.74 : 8,615.75 = 4,257.75 : x
  2. Step 2: Convert to fraction form
    6,249.74/8,615.75 = 4,257.75/x
  3. Step 3: Cross multiply
    6,249.74x = 8,615.75 × 4,257.75
  4. Step 4: Simplify right side
    6,249.74x = 36,683,720.21
  5. Step 5: Solve for x
    x = 36,683,720.21/6,249.74
  6. Step 6: Final answer
    x = 5,869.64

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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.