Home / 3,690.38-5,535.84-1,225.14

Finding the Fourth Proportional to 3,690.38, 5,535.84 and 1,225.14

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Solution

The fourth proportional to 3,690.38, 5,535.84 and 1,225.14 is: 1,837.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,690.38 : 5,535.84 = 1,225.14 : x
  2. Step 2: Convert to fraction form
    3,690.38/5,535.84 = 1,225.14/x
  3. Step 3: Cross multiply
    3,690.38x = 5,535.84 × 1,225.14
  4. Step 4: Simplify right side
    3,690.38x = 6,782,179.02
  5. Step 5: Solve for x
    x = 6,782,179.02/3,690.38
  6. Step 6: Final answer
    x = 1,837.80

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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.