Home / 2,853.35-4,280.68-1,209.96

Finding the Fourth Proportional to 2,853.35, 4,280.68 and 1,209.96

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Solution

The fourth proportional to 2,853.35, 4,280.68 and 1,209.96 is: 1,815.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,853.35 : 4,280.68 = 1,209.96 : x
  2. Step 2: Convert to fraction form
    2,853.35/4,280.68 = 1,209.96/x
  3. Step 3: Cross multiply
    2,853.35x = 4,280.68 × 1,209.96
  4. Step 4: Simplify right side
    2,853.35x = 5,179,451.57
  5. Step 5: Solve for x
    x = 5,179,451.57/2,853.35
  6. Step 6: Final answer
    x = 1,815.22

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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.