Home / 5,135.86-7,695.33-2,171.89

Finding the Fourth Proportional to 5,135.86, 7,695.33 and 2,171.89

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Solution

The fourth proportional to 5,135.86, 7,695.33 and 2,171.89 is: 3,254.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,135.86 : 7,695.33 = 2,171.89 : x
  2. Step 2: Convert to fraction form
    5,135.86/7,695.33 = 2,171.89/x
  3. Step 3: Cross multiply
    5,135.86x = 7,695.33 × 2,171.89
  4. Step 4: Simplify right side
    5,135.86x = 16,713,410.27
  5. Step 5: Solve for x
    x = 16,713,410.27/5,135.86
  6. Step 6: Final answer
    x = 3,254.26

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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.