Home / 3,878,489.81-5,352,559.05-2,136,158.85

Finding the Fourth Proportional to 3,878,489.81, 5,352,559.05 and 2,136,158.85

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Solution

The fourth proportional to 3,878,489.81, 5,352,559.05 and 2,136,158.85 is: 2,948,033.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,878,489.81 : 5,352,559.05 = 2,136,158.85 : x
  2. Step 2: Convert to fraction form
    3,878,489.81/5,352,559.05 = 2,136,158.85/x
  3. Step 3: Cross multiply
    3,878,489.81x = 5,352,559.05 × 2,136,158.85
  4. Step 4: Simplify right side
    3,878,489.81x = 11,433,916,384,805.09
  5. Step 5: Solve for x
    x = 11,433,916,384,805.09/3,878,489.81
  6. Step 6: Final answer
    x = 2,948,033.11

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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.