Home / 3,839,919.68-5,298,987.48-2,121,003.20

Finding the Fourth Proportional to 3,839,919.68, 5,298,987.48 and 2,121,003.20

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Solution

The fourth proportional to 3,839,919.68, 5,298,987.48 and 2,121,003.20 is: 2,926,928.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,839,919.68 : 5,298,987.48 = 2,121,003.20 : x
  2. Step 2: Convert to fraction form
    3,839,919.68/5,298,987.48 = 2,121,003.20/x
  3. Step 3: Cross multiply
    3,839,919.68x = 5,298,987.48 × 2,121,003.20
  4. Step 4: Simplify right side
    3,839,919.68x = 11,239,169,401,839.94
  5. Step 5: Solve for x
    x = 11,239,169,401,839.94/3,839,919.68
  6. Step 6: Final answer
    x = 2,926,928.25

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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.