Home / 2,812.85-3,881.12-1,633.29

Finding the Fourth Proportional to 2,812.85, 3,881.12 and 1,633.29

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Solution

The fourth proportional to 2,812.85, 3,881.12 and 1,633.29 is: 2,253.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812.85 : 3,881.12 = 1,633.29 : x
  2. Step 2: Convert to fraction form
    2,812.85/3,881.12 = 1,633.29/x
  3. Step 3: Cross multiply
    2,812.85x = 3,881.12 × 1,633.29
  4. Step 4: Simplify right side
    2,812.85x = 6,338,994.48
  5. Step 5: Solve for x
    x = 6,338,994.48/2,812.85
  6. Step 6: Final answer
    x = 2,253.58

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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.