Home / 5,179-7,769.73-1,716.25

Finding the Fourth Proportional to 5,179, 7,769.73 and 1,716.25

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Solution

The fourth proportional to 5,179, 7,769.73 and 1,716.25 is: 2,574.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,179 : 7,769.73 = 1,716.25 : x
  2. Step 2: Convert to fraction form
    5,179/7,769.73 = 1,716.25/x
  3. Step 3: Cross multiply
    5,179x = 7,769.73 × 1,716.25
  4. Step 4: Simplify right side
    5,179x = 13,334,799.11
  5. Step 5: Solve for x
    x = 13,334,799.11/5,179
  6. Step 6: Final answer
    x = 2,574.78

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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.