Home / 2,238.63-3,335.45-2,112.88

Finding the Fourth Proportional to 2,238.63, 3,335.45 and 2,112.88

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Solution

The fourth proportional to 2,238.63, 3,335.45 and 2,112.88 is: 3,148.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,238.63 : 3,335.45 = 2,112.88 : x
  2. Step 2: Convert to fraction form
    2,238.63/3,335.45 = 2,112.88/x
  3. Step 3: Cross multiply
    2,238.63x = 3,335.45 × 2,112.88
  4. Step 4: Simplify right side
    2,238.63x = 7,047,378.35
  5. Step 5: Solve for x
    x = 7,047,378.35/2,238.63
  6. Step 6: Final answer
    x = 3,148.08

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.