Home / 3,688.04-5,531.99-1,838.61

Finding the Fourth Proportional to 3,688.04, 5,531.99 and 1,838.61

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Solution

The fourth proportional to 3,688.04, 5,531.99 and 1,838.61 is: 2,757.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,688.04 : 5,531.99 = 1,838.61 : x
  2. Step 2: Convert to fraction form
    3,688.04/5,531.99 = 1,838.61/x
  3. Step 3: Cross multiply
    3,688.04x = 5,531.99 × 1,838.61
  4. Step 4: Simplify right side
    3,688.04x = 10,171,162.94
  5. Step 5: Solve for x
    x = 10,171,162.94/3,688.04
  6. Step 6: Final answer
    x = 2,757.88

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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.