Home / 3,609.34-5,409.89-1,528.04

Finding the Fourth Proportional to 3,609.34, 5,409.89 and 1,528.04

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Solution

The fourth proportional to 3,609.34, 5,409.89 and 1,528.04 is: 2,290.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,609.34 : 5,409.89 = 1,528.04 : x
  2. Step 2: Convert to fraction form
    3,609.34/5,409.89 = 1,528.04/x
  3. Step 3: Cross multiply
    3,609.34x = 5,409.89 × 1,528.04
  4. Step 4: Simplify right side
    3,609.34x = 8,266,545.66
  5. Step 5: Solve for x
    x = 8,266,545.66/3,609.34
  6. Step 6: Final answer
    x = 2,290.32

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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.