Home / 1,919.49-2,879.28-1,435.61

Finding the Fourth Proportional to 1,919.49, 2,879.28 and 1,435.61

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Solution

The fourth proportional to 1,919.49, 2,879.28 and 1,435.61 is: 2,153.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919.49 : 2,879.28 = 1,435.61 : x
  2. Step 2: Convert to fraction form
    1,919.49/2,879.28 = 1,435.61/x
  3. Step 3: Cross multiply
    1,919.49x = 2,879.28 × 1,435.61
  4. Step 4: Simplify right side
    1,919.49x = 4,133,501.59
  5. Step 5: Solve for x
    x = 4,133,501.59/1,919.49
  6. Step 6: Final answer
    x = 2,153.44

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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.