Home / 5,279.03-7,278.46-3,861.58

Finding the Fourth Proportional to 5,279.03, 7,278.46 and 3,861.58

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Solution

The fourth proportional to 5,279.03, 7,278.46 and 3,861.58 is: 5,324.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,279.03 : 7,278.46 = 3,861.58 : x
  2. Step 2: Convert to fraction form
    5,279.03/7,278.46 = 3,861.58/x
  3. Step 3: Cross multiply
    5,279.03x = 7,278.46 × 3,861.58
  4. Step 4: Simplify right side
    5,279.03x = 28,106,327.72
  5. Step 5: Solve for x
    x = 28,106,327.72/5,279.03
  6. Step 6: Final answer
    x = 5,324.14

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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.