Home / 6,242.35-8,615.79-4,257.64

Finding the Fourth Proportional to 6,242.35, 8,615.79 and 4,257.64

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Solution

The fourth proportional to 6,242.35, 8,615.79 and 4,257.64 is: 5,876.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,242.35 : 8,615.79 = 4,257.64 : x
  2. Step 2: Convert to fraction form
    6,242.35/8,615.79 = 4,257.64/x
  3. Step 3: Cross multiply
    6,242.35x = 8,615.79 × 4,257.64
  4. Step 4: Simplify right side
    6,242.35x = 36,682,932.14
  5. Step 5: Solve for x
    x = 36,682,932.14/6,242.35
  6. Step 6: Final answer
    x = 5,876.46

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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.