Home / 2,882.64-3,976.58-1,686.86

Finding the Fourth Proportional to 2,882.64, 3,976.58 and 1,686.86

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Solution

The fourth proportional to 2,882.64, 3,976.58 and 1,686.86 is: 2,327.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,882.64 : 3,976.58 = 1,686.86 : x
  2. Step 2: Convert to fraction form
    2,882.64/3,976.58 = 1,686.86/x
  3. Step 3: Cross multiply
    2,882.64x = 3,976.58 × 1,686.86
  4. Step 4: Simplify right side
    2,882.64x = 6,707,918.07
  5. Step 5: Solve for x
    x = 6,707,918.07/2,882.64
  6. Step 6: Final answer
    x = 2,327.01

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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.