Home / 3,107.03-4,282.25-2,763.50

Finding the Fourth Proportional to 3,107.03, 4,282.25 and 2,763.50

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Solution

The fourth proportional to 3,107.03, 4,282.25 and 2,763.50 is: 3,808.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,107.03 : 4,282.25 = 2,763.50 : x
  2. Step 2: Convert to fraction form
    3,107.03/4,282.25 = 2,763.50/x
  3. Step 3: Cross multiply
    3,107.03x = 4,282.25 × 2,763.50
  4. Step 4: Simplify right side
    3,107.03x = 11,833,962.65
  5. Step 5: Solve for x
    x = 11,833,962.65/3,107.03
  6. Step 6: Final answer
    x = 3,808.78

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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.