Home / 2,487.78-3,729.24-1,841.40

Finding the Fourth Proportional to 2,487.78, 3,729.24 and 1,841.40

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Solution

The fourth proportional to 2,487.78, 3,729.24 and 1,841.40 is: 2,760.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,487.78 : 3,729.24 = 1,841.40 : x
  2. Step 2: Convert to fraction form
    2,487.78/3,729.24 = 1,841.40/x
  3. Step 3: Cross multiply
    2,487.78x = 3,729.24 × 1,841.40
  4. Step 4: Simplify right side
    2,487.78x = 6,867,022.54
  5. Step 5: Solve for x
    x = 6,867,022.54/2,487.78
  6. Step 6: Final answer
    x = 2,760.30

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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.