Home / 5,815.08-8,723.34-1,918.44

Finding the Fourth Proportional to 5,815.08, 8,723.34 and 1,918.44

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Solution

The fourth proportional to 5,815.08, 8,723.34 and 1,918.44 is: 2,877.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,815.08 : 8,723.34 = 1,918.44 : x
  2. Step 2: Convert to fraction form
    5,815.08/8,723.34 = 1,918.44/x
  3. Step 3: Cross multiply
    5,815.08x = 8,723.34 × 1,918.44
  4. Step 4: Simplify right side
    5,815.08x = 16,735,204.39
  5. Step 5: Solve for x
    x = 16,735,204.39/5,815.08
  6. Step 6: Final answer
    x = 2,877.90

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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.