Home / 3,169.07-4,372.23-1,909.65

Finding the Fourth Proportional to 3,169.07, 4,372.23 and 1,909.65

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Solution

The fourth proportional to 3,169.07, 4,372.23 and 1,909.65 is: 2,634.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,169.07 : 4,372.23 = 1,909.65 : x
  2. Step 2: Convert to fraction form
    3,169.07/4,372.23 = 1,909.65/x
  3. Step 3: Cross multiply
    3,169.07x = 4,372.23 × 1,909.65
  4. Step 4: Simplify right side
    3,169.07x = 8,349,429.02
  5. Step 5: Solve for x
    x = 8,349,429.02/3,169.07
  6. Step 6: Final answer
    x = 2,634.66

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1.5x scale

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.