Home / 2,065.26-3,109.07-1,886.70

Finding the Fourth Proportional to 2,065.26, 3,109.07 and 1,886.70

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Solution

The fourth proportional to 2,065.26, 3,109.07 and 1,886.70 is: 2,840.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,065.26 : 3,109.07 = 1,886.70 : x
  2. Step 2: Convert to fraction form
    2,065.26/3,109.07 = 1,886.70/x
  3. Step 3: Cross multiply
    2,065.26x = 3,109.07 × 1,886.70
  4. Step 4: Simplify right side
    2,065.26x = 5,865,872.94
  5. Step 5: Solve for x
    x = 5,865,872.94/2,065.26
  6. Step 6: Final answer
    x = 2,840.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.