Home / 3,792.28-5,688.39-1,159.78

Finding the Fourth Proportional to 3,792.28, 5,688.39 and 1,159.78

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Solution

The fourth proportional to 3,792.28, 5,688.39 and 1,159.78 is: 1,739.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,792.28 : 5,688.39 = 1,159.78 : x
  2. Step 2: Convert to fraction form
    3,792.28/5,688.39 = 1,159.78/x
  3. Step 3: Cross multiply
    3,792.28x = 5,688.39 × 1,159.78
  4. Step 4: Simplify right side
    3,792.28x = 6,597,280.95
  5. Step 5: Solve for x
    x = 6,597,280.95/3,792.28
  6. Step 6: Final answer
    x = 1,739.66

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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.