Home / 5,279.70-7,299.90-4,623.60

Finding the Fourth Proportional to 5,279.70, 7,299.90 and 4,623.60

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Solution

The fourth proportional to 5,279.70, 7,299.90 and 4,623.60 is: 6,392.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,279.70 : 7,299.90 = 4,623.60 : x
  2. Step 2: Convert to fraction form
    5,279.70/7,299.90 = 4,623.60/x
  3. Step 3: Cross multiply
    5,279.70x = 7,299.90 × 4,623.60
  4. Step 4: Simplify right side
    5,279.70x = 33,751,817.64
  5. Step 5: Solve for x
    x = 33,751,817.64/5,279.70
  6. Step 6: Final answer
    x = 6,392.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.