Home / 3,125.82-4,690.62-1,178.04

Finding the Fourth Proportional to 3,125.82, 4,690.62 and 1,178.04

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Solution

The fourth proportional to 3,125.82, 4,690.62 and 1,178.04 is: 1,767.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.82 : 4,690.62 = 1,178.04 : x
  2. Step 2: Convert to fraction form
    3,125.82/4,690.62 = 1,178.04/x
  3. Step 3: Cross multiply
    3,125.82x = 4,690.62 × 1,178.04
  4. Step 4: Simplify right side
    3,125.82x = 5,525,737.98
  5. Step 5: Solve for x
    x = 5,525,737.98/3,125.82
  6. Step 6: Final answer
    x = 1,767.77

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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.