Home / 5,676.56-8,515.64-2,387.60

Finding the Fourth Proportional to 5,676.56, 8,515.64 and 2,387.60

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Solution

The fourth proportional to 5,676.56, 8,515.64 and 2,387.60 is: 3,581.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,676.56 : 8,515.64 = 2,387.60 : x
  2. Step 2: Convert to fraction form
    5,676.56/8,515.64 = 2,387.60/x
  3. Step 3: Cross multiply
    5,676.56x = 8,515.64 × 2,387.60
  4. Step 4: Simplify right side
    5,676.56x = 20,331,942.06
  5. Step 5: Solve for x
    x = 20,331,942.06/5,676.56
  6. Step 6: Final answer
    x = 3,581.74

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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.