Home / 3,487.05-5,230.55-889.98

Finding the Fourth Proportional to 3,487.05, 5,230.55 and 889.98

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Solution

The fourth proportional to 3,487.05, 5,230.55 and 889.98 is: 1,334.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,487.05 : 5,230.55 = 889.98 : x
  2. Step 2: Convert to fraction form
    3,487.05/5,230.55 = 889.98/x
  3. Step 3: Cross multiply
    3,487.05x = 5,230.55 × 889.98
  4. Step 4: Simplify right side
    3,487.05x = 4,655,080.44
  5. Step 5: Solve for x
    x = 4,655,080.44/3,487.05
  6. Step 6: Final answer
    x = 1,334.96

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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.