Home / 3,539.52-5,316.30-2,136.78

Finding the Fourth Proportional to 3,539.52, 5,316.30 and 2,136.78

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Solution

The fourth proportional to 3,539.52, 5,316.30 and 2,136.78 is: 3,209.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,539.52 : 5,316.30 = 2,136.78 : x
  2. Step 2: Convert to fraction form
    3,539.52/5,316.30 = 2,136.78/x
  3. Step 3: Cross multiply
    3,539.52x = 5,316.30 × 2,136.78
  4. Step 4: Simplify right side
    3,539.52x = 11,359,763.51
  5. Step 5: Solve for x
    x = 11,359,763.51/3,539.52
  6. Step 6: Final answer
    x = 3,209.41

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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.