Home / 2,065.78-2,850.84-1,226.28

Finding the Fourth Proportional to 2,065.78, 2,850.84 and 1,226.28

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Solution

The fourth proportional to 2,065.78, 2,850.84 and 1,226.28 is: 1,692.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,065.78 : 2,850.84 = 1,226.28 : x
  2. Step 2: Convert to fraction form
    2,065.78/2,850.84 = 1,226.28/x
  3. Step 3: Cross multiply
    2,065.78x = 2,850.84 × 1,226.28
  4. Step 4: Simplify right side
    2,065.78x = 3,495,928.08
  5. Step 5: Solve for x
    x = 3,495,928.08/2,065.78
  6. Step 6: Final answer
    x = 1,692.30

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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.