Home / 6,385.96-8,812.74-4,286.44

Finding the Fourth Proportional to 6,385.96, 8,812.74 and 4,286.44

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Solution

The fourth proportional to 6,385.96, 8,812.74 and 4,286.44 is: 5,915.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,385.96 : 8,812.74 = 4,286.44 : x
  2. Step 2: Convert to fraction form
    6,385.96/8,812.74 = 4,286.44/x
  3. Step 3: Cross multiply
    6,385.96x = 8,812.74 × 4,286.44
  4. Step 4: Simplify right side
    6,385.96x = 37,775,281.25
  5. Step 5: Solve for x
    x = 37,775,281.25/6,385.96
  6. Step 6: Final answer
    x = 5,915.36

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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.