Home / 2,681.79-4,022.68-1,120.94

Finding the Fourth Proportional to 2,681.79, 4,022.68 and 1,120.94

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Solution

The fourth proportional to 2,681.79, 4,022.68 and 1,120.94 is: 1,681.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,681.79 : 4,022.68 = 1,120.94 : x
  2. Step 2: Convert to fraction form
    2,681.79/4,022.68 = 1,120.94/x
  3. Step 3: Cross multiply
    2,681.79x = 4,022.68 × 1,120.94
  4. Step 4: Simplify right side
    2,681.79x = 4,509,182.92
  5. Step 5: Solve for x
    x = 4,509,182.92/2,681.79
  6. Step 6: Final answer
    x = 1,681.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.