Home / 6,257.72-8,631.93-3,899.41

Finding the Fourth Proportional to 6,257.72, 8,631.93 and 3,899.41

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Solution

The fourth proportional to 6,257.72, 8,631.93 and 3,899.41 is: 5,378.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,257.72 : 8,631.93 = 3,899.41 : x
  2. Step 2: Convert to fraction form
    6,257.72/8,631.93 = 3,899.41/x
  3. Step 3: Cross multiply
    6,257.72x = 8,631.93 × 3,899.41
  4. Step 4: Simplify right side
    6,257.72x = 33,659,434.16
  5. Step 5: Solve for x
    x = 33,659,434.16/6,257.72
  6. Step 6: Final answer
    x = 5,378.87

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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.