Home / 3,486.38-5,230.08-1,020.87

Finding the Fourth Proportional to 3,486.38, 5,230.08 and 1,020.87

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Solution

The fourth proportional to 3,486.38, 5,230.08 and 1,020.87 is: 1,531.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,486.38 : 5,230.08 = 1,020.87 : x
  2. Step 2: Convert to fraction form
    3,486.38/5,230.08 = 1,020.87/x
  3. Step 3: Cross multiply
    3,486.38x = 5,230.08 × 1,020.87
  4. Step 4: Simplify right side
    3,486.38x = 5,339,231.77
  5. Step 5: Solve for x
    x = 5,339,231.77/3,486.38
  6. Step 6: Final answer
    x = 1,531.46

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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.