Home / 2,065.32-2,850.70-1,278.94

Finding the Fourth Proportional to 2,065.32, 2,850.70 and 1,278.94

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Solution

The fourth proportional to 2,065.32, 2,850.70 and 1,278.94 is: 1,765.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,065.32 : 2,850.70 = 1,278.94 : x
  2. Step 2: Convert to fraction form
    2,065.32/2,850.70 = 1,278.94/x
  3. Step 3: Cross multiply
    2,065.32x = 2,850.70 × 1,278.94
  4. Step 4: Simplify right side
    2,065.32x = 3,645,874.26
  5. Step 5: Solve for x
    x = 3,645,874.26/2,065.32
  6. Step 6: Final answer
    x = 1,765.28

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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.