Home / 1,789.53-2,467.85-1,369.90

Finding the Fourth Proportional to 1,789.53, 2,467.85 and 1,369.90

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Solution

The fourth proportional to 1,789.53, 2,467.85 and 1,369.90 is: 1,889.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,789.53 : 2,467.85 = 1,369.90 : x
  2. Step 2: Convert to fraction form
    1,789.53/2,467.85 = 1,369.90/x
  3. Step 3: Cross multiply
    1,789.53x = 2,467.85 × 1,369.90
  4. Step 4: Simplify right side
    1,789.53x = 3,380,711.66
  5. Step 5: Solve for x
    x = 3,380,711.66/1,789.53
  6. Step 6: Final answer
    x = 1,889.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.