Home / 2,213.36-3,054.48-1,282.40

Finding the Fourth Proportional to 2,213.36, 3,054.48 and 1,282.40

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Solution

The fourth proportional to 2,213.36, 3,054.48 and 1,282.40 is: 1,769.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,213.36 : 3,054.48 = 1,282.40 : x
  2. Step 2: Convert to fraction form
    2,213.36/3,054.48 = 1,282.40/x
  3. Step 3: Cross multiply
    2,213.36x = 3,054.48 × 1,282.40
  4. Step 4: Simplify right side
    2,213.36x = 3,917,065.15
  5. Step 5: Solve for x
    x = 3,917,065.15/2,213.36
  6. Step 6: Final answer
    x = 1,769.74

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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.