Home / 2,853.03-4,279.82-1,121.25

Finding the Fourth Proportional to 2,853.03, 4,279.82 and 1,121.25

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Solution

The fourth proportional to 2,853.03, 4,279.82 and 1,121.25 is: 1,681.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,853.03 : 4,279.82 = 1,121.25 : x
  2. Step 2: Convert to fraction form
    2,853.03/4,279.82 = 1,121.25/x
  3. Step 3: Cross multiply
    2,853.03x = 4,279.82 × 1,121.25
  4. Step 4: Simplify right side
    2,853.03x = 4,798,742.57
  5. Step 5: Solve for x
    x = 4,798,742.57/2,853.03
  6. Step 6: Final answer
    x = 1,681.98

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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.