Home / 2,116.62-2,919.93-1,371.24

Finding the Fourth Proportional to 2,116.62, 2,919.93 and 1,371.24

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Solution

The fourth proportional to 2,116.62, 2,919.93 and 1,371.24 is: 1,891.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,116.62 : 2,919.93 = 1,371.24 : x
  2. Step 2: Convert to fraction form
    2,116.62/2,919.93 = 1,371.24/x
  3. Step 3: Cross multiply
    2,116.62x = 2,919.93 × 1,371.24
  4. Step 4: Simplify right side
    2,116.62x = 4,003,924.81
  5. Step 5: Solve for x
    x = 4,003,924.81/2,116.62
  6. Step 6: Final answer
    x = 1,891.66

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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.