Home / 3,976.84-5,488-2,184.34

Finding the Fourth Proportional to 3,976.84, 5,488 and 2,184.34

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Solution

The fourth proportional to 3,976.84, 5,488 and 2,184.34 is: 3,014.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,976.84 : 5,488 = 2,184.34 : x
  2. Step 2: Convert to fraction form
    3,976.84/5,488 = 2,184.34/x
  3. Step 3: Cross multiply
    3,976.84x = 5,488 × 2,184.34
  4. Step 4: Simplify right side
    3,976.84x = 11,987,657.92
  5. Step 5: Solve for x
    x = 11,987,657.92/3,976.84
  6. Step 6: Final answer
    x = 3,014.37

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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.