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Finding the Fourth Proportional to 6,678.57, 10,015.89 and 2,515.57

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Solution

The fourth proportional to 6,678.57, 10,015.89 and 2,515.57 is: 3,772.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,678.57 : 10,015.89 = 2,515.57 : x
  2. Step 2: Convert to fraction form
    6,678.57/10,015.89 = 2,515.57/x
  3. Step 3: Cross multiply
    6,678.57x = 10,015.89 × 2,515.57
  4. Step 4: Simplify right side
    6,678.57x = 25,195,672.41
  5. Step 5: Solve for x
    x = 25,195,672.41/6,678.57
  6. Step 6: Final answer
    x = 3,772.61

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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.