Home / 3,690.18-5,532.19-1,838.75

Finding the Fourth Proportional to 3,690.18, 5,532.19 and 1,838.75

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Solution

The fourth proportional to 3,690.18, 5,532.19 and 1,838.75 is: 2,756.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,690.18 : 5,532.19 = 1,838.75 : x
  2. Step 2: Convert to fraction form
    3,690.18/5,532.19 = 1,838.75/x
  3. Step 3: Cross multiply
    3,690.18x = 5,532.19 × 1,838.75
  4. Step 4: Simplify right side
    3,690.18x = 10,172,323.57
  5. Step 5: Solve for x
    x = 10,172,323.57/3,690.18
  6. Step 6: Final answer
    x = 2,756.59

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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.