Home / 5,286.08-7,279.92-4,393.80

Finding the Fourth Proportional to 5,286.08, 7,279.92 and 4,393.80

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Solution

The fourth proportional to 5,286.08, 7,279.92 and 4,393.80 is: 6,051.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,286.08 : 7,279.92 = 4,393.80 : x
  2. Step 2: Convert to fraction form
    5,286.08/7,279.92 = 4,393.80/x
  3. Step 3: Cross multiply
    5,286.08x = 7,279.92 × 4,393.80
  4. Step 4: Simplify right side
    5,286.08x = 31,986,512.50
  5. Step 5: Solve for x
    x = 31,986,512.50/5,286.08
  6. Step 6: Final answer
    x = 6,051.09

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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.