Home / 5,514.40-8,279.70-4,283.20

Finding the Fourth Proportional to 5,514.40, 8,279.70 and 4,283.20

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Solution

The fourth proportional to 5,514.40, 8,279.70 and 4,283.20 is: 6,431.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,514.40 : 8,279.70 = 4,283.20 : x
  2. Step 2: Convert to fraction form
    5,514.40/8,279.70 = 4,283.20/x
  3. Step 3: Cross multiply
    5,514.40x = 8,279.70 × 4,283.20
  4. Step 4: Simplify right side
    5,514.40x = 35,463,611.04
  5. Step 5: Solve for x
    x = 35,463,611.04/5,514.40
  6. Step 6: Final answer
    x = 6,431.09

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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.