Home / 2,279.07-3,419.64-1,305.18

Finding the Fourth Proportional to 2,279.07, 3,419.64 and 1,305.18

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Solution

The fourth proportional to 2,279.07, 3,419.64 and 1,305.18 is: 1,958.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,279.07 : 3,419.64 = 1,305.18 : x
  2. Step 2: Convert to fraction form
    2,279.07/3,419.64 = 1,305.18/x
  3. Step 3: Cross multiply
    2,279.07x = 3,419.64 × 1,305.18
  4. Step 4: Simplify right side
    2,279.07x = 4,463,226.72
  5. Step 5: Solve for x
    x = 4,463,226.72/2,279.07
  6. Step 6: Final answer
    x = 1,958.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.