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Finding the Fourth Proportional to 7,056, 10,584.61 and 1,861.88

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Solution

The fourth proportional to 7,056, 10,584.61 and 1,861.88 is: 2,792.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,056 : 10,584.61 = 1,861.88 : x
  2. Step 2: Convert to fraction form
    7,056/10,584.61 = 1,861.88/x
  3. Step 3: Cross multiply
    7,056x = 10,584.61 × 1,861.88
  4. Step 4: Simplify right side
    7,056x = 19,707,216.09
  5. Step 5: Solve for x
    x = 19,707,216.09/7,056
  6. Step 6: Final answer
    x = 2,792.97

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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.