Home / 3,193.80-4,791.84-1,247.40

Finding the Fourth Proportional to 3,193.80, 4,791.84 and 1,247.40

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Solution

The fourth proportional to 3,193.80, 4,791.84 and 1,247.40 is: 1,871.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,193.80 : 4,791.84 = 1,247.40 : x
  2. Step 2: Convert to fraction form
    3,193.80/4,791.84 = 1,247.40/x
  3. Step 3: Cross multiply
    3,193.80x = 4,791.84 × 1,247.40
  4. Step 4: Simplify right side
    3,193.80x = 5,977,341.22
  5. Step 5: Solve for x
    x = 5,977,341.22/3,193.80
  6. Step 6: Final answer
    x = 1,871.55

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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.