Home / 3,278.39-4,919.55-1,303.65

Finding the Fourth Proportional to 3,278.39, 4,919.55 and 1,303.65

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Solution

The fourth proportional to 3,278.39, 4,919.55 and 1,303.65 is: 1,956.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.39 : 4,919.55 = 1,303.65 : x
  2. Step 2: Convert to fraction form
    3,278.39/4,919.55 = 1,303.65/x
  3. Step 3: Cross multiply
    3,278.39x = 4,919.55 × 1,303.65
  4. Step 4: Simplify right side
    3,278.39x = 6,413,371.36
  5. Step 5: Solve for x
    x = 6,413,371.36/3,278.39
  6. Step 6: Final answer
    x = 1,956.26

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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.