Home / 1,896.90-2,847.37-1,678.91

Finding the Fourth Proportional to 1,896.90, 2,847.37 and 1,678.91

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Solution

The fourth proportional to 1,896.90, 2,847.37 and 1,678.91 is: 2,520.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,896.90 : 2,847.37 = 1,678.91 : x
  2. Step 2: Convert to fraction form
    1,896.90/2,847.37 = 1,678.91/x
  3. Step 3: Cross multiply
    1,896.90x = 2,847.37 × 1,678.91
  4. Step 4: Simplify right side
    1,896.90x = 4,780,478.70
  5. Step 5: Solve for x
    x = 4,780,478.70/1,896.90
  6. Step 6: Final answer
    x = 2,520.15

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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.