Home / 1,919.75-2,876.90-1,479.33

Finding the Fourth Proportional to 1,919.75, 2,876.90 and 1,479.33

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Solution

The fourth proportional to 1,919.75, 2,876.90 and 1,479.33 is: 2,216.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919.75 : 2,876.90 = 1,479.33 : x
  2. Step 2: Convert to fraction form
    1,919.75/2,876.90 = 1,479.33/x
  3. Step 3: Cross multiply
    1,919.75x = 2,876.90 × 1,479.33
  4. Step 4: Simplify right side
    1,919.75x = 4,255,877.08
  5. Step 5: Solve for x
    x = 4,255,877.08/1,919.75
  6. Step 6: Final answer
    x = 2,216.90

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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.