Home / 2,748.45-3,792.87-1,489.50

Finding the Fourth Proportional to 2,748.45, 3,792.87 and 1,489.50

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Solution

The fourth proportional to 2,748.45, 3,792.87 and 1,489.50 is: 2,055.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,748.45 : 3,792.87 = 1,489.50 : x
  2. Step 2: Convert to fraction form
    2,748.45/3,792.87 = 1,489.50/x
  3. Step 3: Cross multiply
    2,748.45x = 3,792.87 × 1,489.50
  4. Step 4: Simplify right side
    2,748.45x = 5,649,479.87
  5. Step 5: Solve for x
    x = 5,649,479.87/2,748.45
  6. Step 6: Final answer
    x = 2,055.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.