Home / 2,486.79-3,730.17-1,100.78

Finding the Fourth Proportional to 2,486.79, 3,730.17 and 1,100.78

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Solution

The fourth proportional to 2,486.79, 3,730.17 and 1,100.78 is: 1,651.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,486.79 : 3,730.17 = 1,100.78 : x
  2. Step 2: Convert to fraction form
    2,486.79/3,730.17 = 1,100.78/x
  3. Step 3: Cross multiply
    2,486.79x = 3,730.17 × 1,100.78
  4. Step 4: Simplify right side
    2,486.79x = 4,106,077.88
  5. Step 5: Solve for x
    x = 4,106,077.88/2,486.79
  6. Step 6: Final answer
    x = 1,651.16

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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.