Home / 1,640.75-2,265.26-1,052.31

Finding the Fourth Proportional to 1,640.75, 2,265.26 and 1,052.31

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Solution

The fourth proportional to 1,640.75, 2,265.26 and 1,052.31 is: 1,452.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640.75 : 2,265.26 = 1,052.31 : x
  2. Step 2: Convert to fraction form
    1,640.75/2,265.26 = 1,052.31/x
  3. Step 3: Cross multiply
    1,640.75x = 2,265.26 × 1,052.31
  4. Step 4: Simplify right side
    1,640.75x = 2,383,755.75
  5. Step 5: Solve for x
    x = 2,383,755.75/1,640.75
  6. Step 6: Final answer
    x = 1,452.85

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1.5x scale

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.