Home / 2,213.76-3,055.44-1,330.08

Finding the Fourth Proportional to 2,213.76, 3,055.44 and 1,330.08

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Solution

The fourth proportional to 2,213.76, 3,055.44 and 1,330.08 is: 1,835.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,213.76 : 3,055.44 = 1,330.08 : x
  2. Step 2: Convert to fraction form
    2,213.76/3,055.44 = 1,330.08/x
  3. Step 3: Cross multiply
    2,213.76x = 3,055.44 × 1,330.08
  4. Step 4: Simplify right side
    2,213.76x = 4,063,979.64
  5. Step 5: Solve for x
    x = 4,063,979.64/2,213.76
  6. Step 6: Final answer
    x = 1,835.78

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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.