Home / 3,873.12-5,345.04-2,104.86

Finding the Fourth Proportional to 3,873.12, 5,345.04 and 2,104.86

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Solution

The fourth proportional to 3,873.12, 5,345.04 and 2,104.86 is: 2,904.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,873.12 : 5,345.04 = 2,104.86 : x
  2. Step 2: Convert to fraction form
    3,873.12/5,345.04 = 2,104.86/x
  3. Step 3: Cross multiply
    3,873.12x = 5,345.04 × 2,104.86
  4. Step 4: Simplify right side
    3,873.12x = 11,250,560.89
  5. Step 5: Solve for x
    x = 11,250,560.89/3,873.12
  6. Step 6: Final answer
    x = 2,904.78

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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.