Home / 2,748.10-3,792.40-1,536.79

Finding the Fourth Proportional to 2,748.10, 3,792.40 and 1,536.79

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Solution

The fourth proportional to 2,748.10, 3,792.40 and 1,536.79 is: 2,120.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,748.10 : 3,792.40 = 1,536.79 : x
  2. Step 2: Convert to fraction form
    2,748.10/3,792.40 = 1,536.79/x
  3. Step 3: Cross multiply
    2,748.10x = 3,792.40 × 1,536.79
  4. Step 4: Simplify right side
    2,748.10x = 5,828,122.40
  5. Step 5: Solve for x
    x = 5,828,122.40/2,748.10
  6. Step 6: Final answer
    x = 2,120.78

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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.