Home / 2,265.57-3,140.97-2,185.38

Finding the Fourth Proportional to 2,265.57, 3,140.97 and 2,185.38

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Solution

The fourth proportional to 2,265.57, 3,140.97 and 2,185.38 is: 3,029.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,265.57 : 3,140.97 = 2,185.38 : x
  2. Step 2: Convert to fraction form
    2,265.57/3,140.97 = 2,185.38/x
  3. Step 3: Cross multiply
    2,265.57x = 3,140.97 × 2,185.38
  4. Step 4: Simplify right side
    2,265.57x = 6,864,213.02
  5. Step 5: Solve for x
    x = 6,864,213.02/2,265.57
  6. Step 6: Final answer
    x = 3,029.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.