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Finding the Fourth Proportional to 6,672.87, 10,015.02 and 2,780.01

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Solution

The fourth proportional to 6,672.87, 10,015.02 and 2,780.01 is: 4,172.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,672.87 : 10,015.02 = 2,780.01 : x
  2. Step 2: Convert to fraction form
    6,672.87/10,015.02 = 2,780.01/x
  3. Step 3: Cross multiply
    6,672.87x = 10,015.02 × 2,780.01
  4. Step 4: Simplify right side
    6,672.87x = 27,841,855.75
  5. Step 5: Solve for x
    x = 27,841,855.75/6,672.87
  6. Step 6: Final answer
    x = 4,172.40

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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.