Home / 2,065.19-2,850.12-1,279.49

Finding the Fourth Proportional to 2,065.19, 2,850.12 and 1,279.49

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Solution

The fourth proportional to 2,065.19, 2,850.12 and 1,279.49 is: 1,765.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,065.19 : 2,850.12 = 1,279.49 : x
  2. Step 2: Convert to fraction form
    2,065.19/2,850.12 = 1,279.49/x
  3. Step 3: Cross multiply
    2,065.19x = 2,850.12 × 1,279.49
  4. Step 4: Simplify right side
    2,065.19x = 3,646,685.79
  5. Step 5: Solve for x
    x = 3,646,685.79/2,065.19
  6. Step 6: Final answer
    x = 1,765.79

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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.