Home / 1,876.11-2,811.53-1,182.45

Finding the Fourth Proportional to 1,876.11, 2,811.53 and 1,182.45

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Solution

The fourth proportional to 1,876.11, 2,811.53 and 1,182.45 is: 1,772.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,876.11 : 2,811.53 = 1,182.45 : x
  2. Step 2: Convert to fraction form
    1,876.11/2,811.53 = 1,182.45/x
  3. Step 3: Cross multiply
    1,876.11x = 2,811.53 × 1,182.45
  4. Step 4: Simplify right side
    1,876.11x = 3,324,493.65
  5. Step 5: Solve for x
    x = 3,324,493.65/1,876.11
  6. Step 6: Final answer
    x = 1,772.01

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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.