Home / 6,279.72-8,665.80-3,626.88

Finding the Fourth Proportional to 6,279.72, 8,665.80 and 3,626.88

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Solution

The fourth proportional to 6,279.72, 8,665.80 and 3,626.88 is: 5,004.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,279.72 : 8,665.80 = 3,626.88 : x
  2. Step 2: Convert to fraction form
    6,279.72/8,665.80 = 3,626.88/x
  3. Step 3: Cross multiply
    6,279.72x = 8,665.80 × 3,626.88
  4. Step 4: Simplify right side
    6,279.72x = 31,429,816.70
  5. Step 5: Solve for x
    x = 31,429,816.70/6,279.72
  6. Step 6: Final answer
    x = 5,004.97

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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.