Home / 1,874.77-2,811.89-1,179.32

Finding the Fourth Proportional to 1,874.77, 2,811.89 and 1,179.32

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Solution

The fourth proportional to 1,874.77, 2,811.89 and 1,179.32 is: 1,768.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,874.77 : 2,811.89 = 1,179.32 : x
  2. Step 2: Convert to fraction form
    1,874.77/2,811.89 = 1,179.32/x
  3. Step 3: Cross multiply
    1,874.77x = 2,811.89 × 1,179.32
  4. Step 4: Simplify right side
    1,874.77x = 3,316,098.16
  5. Step 5: Solve for x
    x = 3,316,098.16/1,874.77
  6. Step 6: Final answer
    x = 1,768.81

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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.