Home / 3,539.89-5,303.76-3,231.28

Finding the Fourth Proportional to 3,539.89, 5,303.76 and 3,231.28

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Solution

The fourth proportional to 3,539.89, 5,303.76 and 3,231.28 is: 4,841.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,539.89 : 5,303.76 = 3,231.28 : x
  2. Step 2: Convert to fraction form
    3,539.89/5,303.76 = 3,231.28/x
  3. Step 3: Cross multiply
    3,539.89x = 5,303.76 × 3,231.28
  4. Step 4: Simplify right side
    3,539.89x = 17,137,933.61
  5. Step 5: Solve for x
    x = 17,137,933.61/3,539.89
  6. Step 6: Final answer
    x = 4,841.37

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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.