Home / 3,121,192.80-4,676,540.40-2,055,686.40

Finding the Fourth Proportional to 3,121,192.80, 4,676,540.40 and 2,055,686.40

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Solution

The fourth proportional to 3,121,192.80, 4,676,540.40 and 2,055,686.40 is: 3,080,072.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,192.80 : 4,676,540.40 = 2,055,686.40 : x
  2. Step 2: Convert to fraction form
    3,121,192.80/4,676,540.40 = 2,055,686.40/x
  3. Step 3: Cross multiply
    3,121,192.80x = 4,676,540.40 × 2,055,686.40
  4. Step 4: Simplify right side
    3,121,192.80x = 9,613,500,499,330.56
  5. Step 5: Solve for x
    x = 9,613,500,499,330.56/3,121,192.80
  6. Step 6: Final answer
    x = 3,080,072.62

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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.