Home / 2,758.11-3,802.50-1,872.38

Finding the Fourth Proportional to 2,758.11, 3,802.50 and 1,872.38

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Solution

The fourth proportional to 2,758.11, 3,802.50 and 1,872.38 is: 2,581.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,758.11 : 3,802.50 = 1,872.38 : x
  2. Step 2: Convert to fraction form
    2,758.11/3,802.50 = 1,872.38/x
  3. Step 3: Cross multiply
    2,758.11x = 3,802.50 × 1,872.38
  4. Step 4: Simplify right side
    2,758.11x = 7,119,705.94
  5. Step 5: Solve for x
    x = 7,119,705.94/2,758.11
  6. Step 6: Final answer
    x = 2,581.37

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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.