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Finding the Fourth Proportional to 6,881.78, 9,500.79 and 4,530.75

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Solution

The fourth proportional to 6,881.78, 9,500.79 and 4,530.75 is: 6,255.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,881.78 : 9,500.79 = 4,530.75 : x
  2. Step 2: Convert to fraction form
    6,881.78/9,500.79 = 4,530.75/x
  3. Step 3: Cross multiply
    6,881.78x = 9,500.79 × 4,530.75
  4. Step 4: Simplify right side
    6,881.78x = 43,045,704.29
  5. Step 5: Solve for x
    x = 43,045,704.29/6,881.78
  6. Step 6: Final answer
    x = 6,255.02

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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.