Home / 2,754.08-4,120.77-1,639.39

Finding the Fourth Proportional to 2,754.08, 4,120.77 and 1,639.39

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Solution

The fourth proportional to 2,754.08, 4,120.77 and 1,639.39 is: 2,452.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,754.08 : 4,120.77 = 1,639.39 : x
  2. Step 2: Convert to fraction form
    2,754.08/4,120.77 = 1,639.39/x
  3. Step 3: Cross multiply
    2,754.08x = 4,120.77 × 1,639.39
  4. Step 4: Simplify right side
    2,754.08x = 6,755,549.13
  5. Step 5: Solve for x
    x = 6,755,549.13/2,754.08
  6. Step 6: Final answer
    x = 2,452.92

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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.