Home / 2,161.92-2,983.72-1,376.04

Finding the Fourth Proportional to 2,161.92, 2,983.72 and 1,376.04

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Solution

The fourth proportional to 2,161.92, 2,983.72 and 1,376.04 is: 1,899.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,161.92 : 2,983.72 = 1,376.04 : x
  2. Step 2: Convert to fraction form
    2,161.92/2,983.72 = 1,376.04/x
  3. Step 3: Cross multiply
    2,161.92x = 2,983.72 × 1,376.04
  4. Step 4: Simplify right side
    2,161.92x = 4,105,718.07
  5. Step 5: Solve for x
    x = 4,105,718.07/2,161.92
  6. Step 6: Final answer
    x = 1,899.11

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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.