Home / 3,820.08-5,273.46-2,780.04

Finding the Fourth Proportional to 3,820.08, 5,273.46 and 2,780.04

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Solution

The fourth proportional to 3,820.08, 5,273.46 and 2,780.04 is: 3,837.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,820.08 : 5,273.46 = 2,780.04 : x
  2. Step 2: Convert to fraction form
    3,820.08/5,273.46 = 2,780.04/x
  3. Step 3: Cross multiply
    3,820.08x = 5,273.46 × 2,780.04
  4. Step 4: Simplify right side
    3,820.08x = 14,660,429.74
  5. Step 5: Solve for x
    x = 14,660,429.74/3,820.08
  6. Step 6: Final answer
    x = 3,837.73

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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.