Home / 3,169.90-4,753.77-1,089.55

Finding the Fourth Proportional to 3,169.90, 4,753.77 and 1,089.55

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Solution

The fourth proportional to 3,169.90, 4,753.77 and 1,089.55 is: 1,633.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,169.90 : 4,753.77 = 1,089.55 : x
  2. Step 2: Convert to fraction form
    3,169.90/4,753.77 = 1,089.55/x
  3. Step 3: Cross multiply
    3,169.90x = 4,753.77 × 1,089.55
  4. Step 4: Simplify right side
    3,169.90x = 5,179,470.10
  5. Step 5: Solve for x
    x = 5,179,470.10/3,169.90
  6. Step 6: Final answer
    x = 1,633.95

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1.5x scale

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.