Home / 1,867.66-2,577.36-1,081.69

Finding the Fourth Proportional to 1,867.66, 2,577.36 and 1,081.69

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Solution

The fourth proportional to 1,867.66, 2,577.36 and 1,081.69 is: 1,492.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,867.66 : 2,577.36 = 1,081.69 : x
  2. Step 2: Convert to fraction form
    1,867.66/2,577.36 = 1,081.69/x
  3. Step 3: Cross multiply
    1,867.66x = 2,577.36 × 1,081.69
  4. Step 4: Simplify right side
    1,867.66x = 2,787,904.54
  5. Step 5: Solve for x
    x = 2,787,904.54/1,867.66
  6. Step 6: Final answer
    x = 1,492.73

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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.