Home / 5,197.21-7,171.80-2,959.31

Finding the Fourth Proportional to 5,197.21, 7,171.80 and 2,959.31

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Solution

The fourth proportional to 5,197.21, 7,171.80 and 2,959.31 is: 4,083.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,197.21 : 7,171.80 = 2,959.31 : x
  2. Step 2: Convert to fraction form
    5,197.21/7,171.80 = 2,959.31/x
  3. Step 3: Cross multiply
    5,197.21x = 7,171.80 × 2,959.31
  4. Step 4: Simplify right side
    5,197.21x = 21,223,579.46
  5. Step 5: Solve for x
    x = 21,223,579.46/5,197.21
  6. Step 6: Final answer
    x = 4,083.65

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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.