Home / 3,119.34-4,679.30-1,364.50

Finding the Fourth Proportional to 3,119.34, 4,679.30 and 1,364.50

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Solution

The fourth proportional to 3,119.34, 4,679.30 and 1,364.50 is: 2,046.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.34 : 4,679.30 = 1,364.50 : x
  2. Step 2: Convert to fraction form
    3,119.34/4,679.30 = 1,364.50/x
  3. Step 3: Cross multiply
    3,119.34x = 4,679.30 × 1,364.50
  4. Step 4: Simplify right side
    3,119.34x = 6,384,904.85
  5. Step 5: Solve for x
    x = 6,384,904.85/3,119.34
  6. Step 6: Final answer
    x = 2,046.88

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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.