Home / 3,839,918.68-5,298,986.10-2,121,002.20

Finding the Fourth Proportional to 3,839,918.68, 5,298,986.10 and 2,121,002.20

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Solution

The fourth proportional to 3,839,918.68, 5,298,986.10 and 2,121,002.20 is: 2,926,926.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,839,918.68 : 5,298,986.10 = 2,121,002.20 : x
  2. Step 2: Convert to fraction form
    3,839,918.68/5,298,986.10 = 2,121,002.20/x
  3. Step 3: Cross multiply
    3,839,918.68x = 5,298,986.10 × 2,121,002.20
  4. Step 4: Simplify right side
    3,839,918.68x = 11,239,161,175,869.42
  5. Step 5: Solve for x
    x = 11,239,161,175,869.42/3,839,918.68
  6. Step 6: Final answer
    x = 2,926,926.87

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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.