Home / 2,850.25-4,277.40-1,118.88

Finding the Fourth Proportional to 2,850.25, 4,277.40 and 1,118.88

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Solution

The fourth proportional to 2,850.25, 4,277.40 and 1,118.88 is: 1,679.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,850.25 : 4,277.40 = 1,118.88 : x
  2. Step 2: Convert to fraction form
    2,850.25/4,277.40 = 1,118.88/x
  3. Step 3: Cross multiply
    2,850.25x = 4,277.40 × 1,118.88
  4. Step 4: Simplify right side
    2,850.25x = 4,785,897.31
  5. Step 5: Solve for x
    x = 4,785,897.31/2,850.25
  6. Step 6: Final answer
    x = 1,679.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.