Home / 3,690.58-5,535.78-1,225.42

Finding the Fourth Proportional to 3,690.58, 5,535.78 and 1,225.42

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Solution

The fourth proportional to 3,690.58, 5,535.78 and 1,225.42 is: 1,838.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,690.58 : 5,535.78 = 1,225.42 : x
  2. Step 2: Convert to fraction form
    3,690.58/5,535.78 = 1,225.42/x
  3. Step 3: Cross multiply
    3,690.58x = 5,535.78 × 1,225.42
  4. Step 4: Simplify right side
    3,690.58x = 6,783,627.85
  5. Step 5: Solve for x
    x = 6,783,627.85/3,690.58
  6. Step 6: Final answer
    x = 1,838.10

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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.