Home / 2,669.72-3,679.68-1,828.94

Finding the Fourth Proportional to 2,669.72, 3,679.68 and 1,828.94

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Solution

The fourth proportional to 2,669.72, 3,679.68 and 1,828.94 is: 2,520.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,669.72 : 3,679.68 = 1,828.94 : x
  2. Step 2: Convert to fraction form
    2,669.72/3,679.68 = 1,828.94/x
  3. Step 3: Cross multiply
    2,669.72x = 3,679.68 × 1,828.94
  4. Step 4: Simplify right side
    2,669.72x = 6,729,913.94
  5. Step 5: Solve for x
    x = 6,729,913.94/2,669.72
  6. Step 6: Final answer
    x = 2,520.83

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1.5x scale

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.