Home / 6,279.35-9,416.30-2,118.59

Finding the Fourth Proportional to 6,279.35, 9,416.30 and 2,118.59

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Solution

The fourth proportional to 6,279.35, 9,416.30 and 2,118.59 is: 3,176.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,279.35 : 9,416.30 = 2,118.59 : x
  2. Step 2: Convert to fraction form
    6,279.35/9,416.30 = 2,118.59/x
  3. Step 3: Cross multiply
    6,279.35x = 9,416.30 × 2,118.59
  4. Step 4: Simplify right side
    6,279.35x = 19,949,221.34
  5. Step 5: Solve for x
    x = 19,949,221.34/6,279.35
  6. Step 6: Final answer
    x = 3,176.96

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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.