Home / 3,805.18-5,706.87-1,172.32

Finding the Fourth Proportional to 3,805.18, 5,706.87 and 1,172.32

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Solution

The fourth proportional to 3,805.18, 5,706.87 and 1,172.32 is: 1,758.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,805.18 : 5,706.87 = 1,172.32 : x
  2. Step 2: Convert to fraction form
    3,805.18/5,706.87 = 1,172.32/x
  3. Step 3: Cross multiply
    3,805.18x = 5,706.87 × 1,172.32
  4. Step 4: Simplify right side
    3,805.18x = 6,690,277.84
  5. Step 5: Solve for x
    x = 6,690,277.84/3,805.18
  6. Step 6: Final answer
    x = 1,758.20

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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.