Home / 2,759.27-3,809.01-1,640.57

Finding the Fourth Proportional to 2,759.27, 3,809.01 and 1,640.57

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Solution

The fourth proportional to 2,759.27, 3,809.01 and 1,640.57 is: 2,264.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,759.27 : 3,809.01 = 1,640.57 : x
  2. Step 2: Convert to fraction form
    2,759.27/3,809.01 = 1,640.57/x
  3. Step 3: Cross multiply
    2,759.27x = 3,809.01 × 1,640.57
  4. Step 4: Simplify right side
    2,759.27x = 6,248,928.49
  5. Step 5: Solve for x
    x = 6,248,928.49/2,759.27
  6. Step 6: Final answer
    x = 2,264.71

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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.