Home / 3,820.65-5,273.08-2,142.73

Finding the Fourth Proportional to 3,820.65, 5,273.08 and 2,142.73

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Solution

The fourth proportional to 3,820.65, 5,273.08 and 2,142.73 is: 2,957.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,820.65 : 5,273.08 = 2,142.73 : x
  2. Step 2: Convert to fraction form
    3,820.65/5,273.08 = 2,142.73/x
  3. Step 3: Cross multiply
    3,820.65x = 5,273.08 × 2,142.73
  4. Step 4: Simplify right side
    3,820.65x = 11,298,800.00
  5. Step 5: Solve for x
    x = 11,298,800.00/3,820.65
  6. Step 6: Final answer
    x = 2,957.30

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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.