Home / 3,976.85-5,488.13-2,184.41

Finding the Fourth Proportional to 3,976.85, 5,488.13 and 2,184.41

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Solution

The fourth proportional to 3,976.85, 5,488.13 and 2,184.41 is: 3,014.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,976.85 : 5,488.13 = 2,184.41 : x
  2. Step 2: Convert to fraction form
    3,976.85/5,488.13 = 2,184.41/x
  3. Step 3: Cross multiply
    3,976.85x = 5,488.13 × 2,184.41
  4. Step 4: Simplify right side
    3,976.85x = 11,988,311.59
  5. Step 5: Solve for x
    x = 11,988,311.59/3,976.85
  6. Step 6: Final answer
    x = 3,014.52

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1.5x scale

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.