Home / 2,725.11-3,758.09-1,780.60

Finding the Fourth Proportional to 2,725.11, 3,758.09 and 1,780.60

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Solution

The fourth proportional to 2,725.11, 3,758.09 and 1,780.60 is: 2,455.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,725.11 : 3,758.09 = 1,780.60 : x
  2. Step 2: Convert to fraction form
    2,725.11/3,758.09 = 1,780.60/x
  3. Step 3: Cross multiply
    2,725.11x = 3,758.09 × 1,780.60
  4. Step 4: Simplify right side
    2,725.11x = 6,691,627.36
  5. Step 5: Solve for x
    x = 6,691,627.36/2,725.11
  6. Step 6: Final answer
    x = 2,455.55

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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.