Home / 3,521.71-5,281.72-1,181.80

Finding the Fourth Proportional to 3,521.71, 5,281.72 and 1,181.80

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Solution

The fourth proportional to 3,521.71, 5,281.72 and 1,181.80 is: 1,772.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,521.71 : 5,281.72 = 1,181.80 : x
  2. Step 2: Convert to fraction form
    3,521.71/5,281.72 = 1,181.80/x
  3. Step 3: Cross multiply
    3,521.71x = 5,281.72 × 1,181.80
  4. Step 4: Simplify right side
    3,521.71x = 6,241,936.70
  5. Step 5: Solve for x
    x = 6,241,936.70/3,521.71
  6. Step 6: Final answer
    x = 1,772.42

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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.