Home / 2,886.88-3,983.80-1,628

Finding the Fourth Proportional to 2,886.88, 3,983.80 and 1,628

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Solution

The fourth proportional to 2,886.88, 3,983.80 and 1,628 is: 2,246.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,886.88 : 3,983.80 = 1,628 : x
  2. Step 2: Convert to fraction form
    2,886.88/3,983.80 = 1,628/x
  3. Step 3: Cross multiply
    2,886.88x = 3,983.80 × 1,628
  4. Step 4: Simplify right side
    2,886.88x = 6,485,626.40
  5. Step 5: Solve for x
    x = 6,485,626.40/2,886.88
  6. Step 6: Final answer
    x = 2,246.59

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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.