Home / 1,874.43-2,588.90-1,431.36

Finding the Fourth Proportional to 1,874.43, 2,588.90 and 1,431.36

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Solution

The fourth proportional to 1,874.43, 2,588.90 and 1,431.36 is: 1,976.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,874.43 : 2,588.90 = 1,431.36 : x
  2. Step 2: Convert to fraction form
    1,874.43/2,588.90 = 1,431.36/x
  3. Step 3: Cross multiply
    1,874.43x = 2,588.90 × 1,431.36
  4. Step 4: Simplify right side
    1,874.43x = 3,705,640.75
  5. Step 5: Solve for x
    x = 3,705,640.75/1,874.43
  6. Step 6: Final answer
    x = 1,976.94

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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.