Home / 2,280.33-3,140.57-1,965.48

Finding the Fourth Proportional to 2,280.33, 3,140.57 and 1,965.48

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Solution

The fourth proportional to 2,280.33, 3,140.57 and 1,965.48 is: 2,706.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,280.33 : 3,140.57 = 1,965.48 : x
  2. Step 2: Convert to fraction form
    2,280.33/3,140.57 = 1,965.48/x
  3. Step 3: Cross multiply
    2,280.33x = 3,140.57 × 1,965.48
  4. Step 4: Simplify right side
    2,280.33x = 6,172,717.70
  5. Step 5: Solve for x
    x = 6,172,717.70/2,280.33
  6. Step 6: Final answer
    x = 2,706.94

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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.