Home / 3,690.45-5,535.90-1,225.49

Finding the Fourth Proportional to 3,690.45, 5,535.90 and 1,225.49

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Solution

The fourth proportional to 3,690.45, 5,535.90 and 1,225.49 is: 1,838.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,690.45 : 5,535.90 = 1,225.49 : x
  2. Step 2: Convert to fraction form
    3,690.45/5,535.90 = 1,225.49/x
  3. Step 3: Cross multiply
    3,690.45x = 5,535.90 × 1,225.49
  4. Step 4: Simplify right side
    3,690.45x = 6,784,162.41
  5. Step 5: Solve for x
    x = 6,784,162.41/3,690.45
  6. Step 6: Final answer
    x = 1,838.30

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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.