Home / 2,116.42-2,920.26-1,371.32

Finding the Fourth Proportional to 2,116.42, 2,920.26 and 1,371.32

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Solution

The fourth proportional to 2,116.42, 2,920.26 and 1,371.32 is: 1,892.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,116.42 : 2,920.26 = 1,371.32 : x
  2. Step 2: Convert to fraction form
    2,116.42/2,920.26 = 1,371.32/x
  3. Step 3: Cross multiply
    2,116.42x = 2,920.26 × 1,371.32
  4. Step 4: Simplify right side
    2,116.42x = 4,004,610.94
  5. Step 5: Solve for x
    x = 4,004,610.94/2,116.42
  6. Step 6: Final answer
    x = 1,892.16

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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.