Home / 3,390.48-5,086.13-1,198.76

Finding the Fourth Proportional to 3,390.48, 5,086.13 and 1,198.76

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Solution

The fourth proportional to 3,390.48, 5,086.13 and 1,198.76 is: 1,798.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.48 : 5,086.13 = 1,198.76 : x
  2. Step 2: Convert to fraction form
    3,390.48/5,086.13 = 1,198.76/x
  3. Step 3: Cross multiply
    3,390.48x = 5,086.13 × 1,198.76
  4. Step 4: Simplify right side
    3,390.48x = 6,097,017.77
  5. Step 5: Solve for x
    x = 6,097,017.77/3,390.48
  6. Step 6: Final answer
    x = 1,798.28

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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.