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Finding the Fourth Proportional to 6,676.08, 10,015.20 and 2,780.88

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Solution

The fourth proportional to 6,676.08, 10,015.20 and 2,780.88 is: 4,171.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,676.08 : 10,015.20 = 2,780.88 : x
  2. Step 2: Convert to fraction form
    6,676.08/10,015.20 = 2,780.88/x
  3. Step 3: Cross multiply
    6,676.08x = 10,015.20 × 2,780.88
  4. Step 4: Simplify right side
    6,676.08x = 27,851,069.38
  5. Step 5: Solve for x
    x = 27,851,069.38/6,676.08
  6. Step 6: Final answer
    x = 4,171.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.