Home / 5,513.86-8,272-1,815.94

Finding the Fourth Proportional to 5,513.86, 8,272 and 1,815.94

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Solution

The fourth proportional to 5,513.86, 8,272 and 1,815.94 is: 2,724.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,513.86 : 8,272 = 1,815.94 : x
  2. Step 2: Convert to fraction form
    5,513.86/8,272 = 1,815.94/x
  3. Step 3: Cross multiply
    5,513.86x = 8,272 × 1,815.94
  4. Step 4: Simplify right side
    5,513.86x = 15,021,455.68
  5. Step 5: Solve for x
    x = 15,021,455.68/5,513.86
  6. Step 6: Final answer
    x = 2,724.31

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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.