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Finding the Fourth Proportional to 6,765.81, 9,326.88 and 4,375.60

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Solution

The fourth proportional to 6,765.81, 9,326.88 and 4,375.60 is: 6,031.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,765.81 : 9,326.88 = 4,375.60 : x
  2. Step 2: Convert to fraction form
    6,765.81/9,326.88 = 4,375.60/x
  3. Step 3: Cross multiply
    6,765.81x = 9,326.88 × 4,375.60
  4. Step 4: Simplify right side
    6,765.81x = 40,810,672.81
  5. Step 5: Solve for x
    x = 40,810,672.81/6,765.81
  6. Step 6: Final answer
    x = 6,031.90

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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.