Home / 3,601.38-5,402.80-1,521.39

Finding the Fourth Proportional to 3,601.38, 5,402.80 and 1,521.39

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Solution

The fourth proportional to 3,601.38, 5,402.80 and 1,521.39 is: 2,282.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,601.38 : 5,402.80 = 1,521.39 : x
  2. Step 2: Convert to fraction form
    3,601.38/5,402.80 = 1,521.39/x
  3. Step 3: Cross multiply
    3,601.38x = 5,402.80 × 1,521.39
  4. Step 4: Simplify right side
    3,601.38x = 8,219,765.89
  5. Step 5: Solve for x
    x = 8,219,765.89/3,601.38
  6. Step 6: Final answer
    x = 2,282.39

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1.5x scale

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.