Home / 5,167.65-7,131.54-2,809.96

Finding the Fourth Proportional to 5,167.65, 7,131.54 and 2,809.96

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Solution

The fourth proportional to 5,167.65, 7,131.54 and 2,809.96 is: 3,877.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,167.65 : 7,131.54 = 2,809.96 : x
  2. Step 2: Convert to fraction form
    5,167.65/7,131.54 = 2,809.96/x
  3. Step 3: Cross multiply
    5,167.65x = 7,131.54 × 2,809.96
  4. Step 4: Simplify right side
    5,167.65x = 20,039,342.14
  5. Step 5: Solve for x
    x = 20,039,342.14/5,167.65
  6. Step 6: Final answer
    x = 3,877.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.