Home / 1,872.11-2,805.54-1,178.45

Finding the Fourth Proportional to 1,872.11, 2,805.54 and 1,178.45

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Solution

The fourth proportional to 1,872.11, 2,805.54 and 1,178.45 is: 1,766.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,872.11 : 2,805.54 = 1,178.45 : x
  2. Step 2: Convert to fraction form
    1,872.11/2,805.54 = 1,178.45/x
  3. Step 3: Cross multiply
    1,872.11x = 2,805.54 × 1,178.45
  4. Step 4: Simplify right side
    1,872.11x = 3,306,180.69
  5. Step 5: Solve for x
    x = 3,306,180.69/1,872.11
  6. Step 6: Final answer
    x = 1,766.02

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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.