Home / 3,118.26-4,678.77-1,364.55

Finding the Fourth Proportional to 3,118.26, 4,678.77 and 1,364.55

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Solution

The fourth proportional to 3,118.26, 4,678.77 and 1,364.55 is: 2,047.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.26 : 4,678.77 = 1,364.55 : x
  2. Step 2: Convert to fraction form
    3,118.26/4,678.77 = 1,364.55/x
  3. Step 3: Cross multiply
    3,118.26x = 4,678.77 × 1,364.55
  4. Step 4: Simplify right side
    3,118.26x = 6,384,415.60
  5. Step 5: Solve for x
    x = 6,384,415.60/3,118.26
  6. Step 6: Final answer
    x = 2,047.43

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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.