Home / 4,855.30-7,279.35-2,079.70

Finding the Fourth Proportional to 4,855.30, 7,279.35 and 2,079.70

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Solution

The fourth proportional to 4,855.30, 7,279.35 and 2,079.70 is: 3,118.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,855.30 : 7,279.35 = 2,079.70 : x
  2. Step 2: Convert to fraction form
    4,855.30/7,279.35 = 2,079.70/x
  3. Step 3: Cross multiply
    4,855.30x = 7,279.35 × 2,079.70
  4. Step 4: Simplify right side
    4,855.30x = 15,138,864.20
  5. Step 5: Solve for x
    x = 15,138,864.20/4,855.30
  6. Step 6: Final answer
    x = 3,118.01

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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.