Home / 2,813.05-3,882.15-1,618.02

Finding the Fourth Proportional to 2,813.05, 3,882.15 and 1,618.02

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Solution

The fourth proportional to 2,813.05, 3,882.15 and 1,618.02 is: 2,232.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,813.05 : 3,882.15 = 1,618.02 : x
  2. Step 2: Convert to fraction form
    2,813.05/3,882.15 = 1,618.02/x
  3. Step 3: Cross multiply
    2,813.05x = 3,882.15 × 1,618.02
  4. Step 4: Simplify right side
    2,813.05x = 6,281,396.34
  5. Step 5: Solve for x
    x = 6,281,396.34/2,813.05
  6. Step 6: Final answer
    x = 2,232.95

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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.