Home / 3,519.42-5,279.13-1,211.10

Finding the Fourth Proportional to 3,519.42, 5,279.13 and 1,211.10

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Solution

The fourth proportional to 3,519.42, 5,279.13 and 1,211.10 is: 1,816.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,519.42 : 5,279.13 = 1,211.10 : x
  2. Step 2: Convert to fraction form
    3,519.42/5,279.13 = 1,211.10/x
  3. Step 3: Cross multiply
    3,519.42x = 5,279.13 × 1,211.10
  4. Step 4: Simplify right side
    3,519.42x = 6,393,554.34
  5. Step 5: Solve for x
    x = 6,393,554.34/3,519.42
  6. Step 6: Final answer
    x = 1,816.65

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Double scale
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Similar ratio
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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.