Home / 2,799.69-3,863.28-1,621.14

Finding the Fourth Proportional to 2,799.69, 3,863.28 and 1,621.14

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Solution

The fourth proportional to 2,799.69, 3,863.28 and 1,621.14 is: 2,237.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,799.69 : 3,863.28 = 1,621.14 : x
  2. Step 2: Convert to fraction form
    2,799.69/3,863.28 = 1,621.14/x
  3. Step 3: Cross multiply
    2,799.69x = 3,863.28 × 1,621.14
  4. Step 4: Simplify right side
    2,799.69x = 6,262,917.74
  5. Step 5: Solve for x
    x = 6,262,917.74/2,799.69
  6. Step 6: Final answer
    x = 2,237.00

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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.