Home / 2,919.33-4,379.04-1,275.48

Finding the Fourth Proportional to 2,919.33, 4,379.04 and 1,275.48

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Solution

The fourth proportional to 2,919.33, 4,379.04 and 1,275.48 is: 1,913.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919.33 : 4,379.04 = 1,275.48 : x
  2. Step 2: Convert to fraction form
    2,919.33/4,379.04 = 1,275.48/x
  3. Step 3: Cross multiply
    2,919.33x = 4,379.04 × 1,275.48
  4. Step 4: Simplify right side
    2,919.33x = 5,585,377.94
  5. Step 5: Solve for x
    x = 5,585,377.94/2,919.33
  6. Step 6: Final answer
    x = 1,913.24

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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.