Home / 2,108.42-3,159.77-1,169.13

Finding the Fourth Proportional to 2,108.42, 3,159.77 and 1,169.13

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Solution

The fourth proportional to 2,108.42, 3,159.77 and 1,169.13 is: 1,752.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,108.42 : 3,159.77 = 1,169.13 : x
  2. Step 2: Convert to fraction form
    2,108.42/3,159.77 = 1,169.13/x
  3. Step 3: Cross multiply
    2,108.42x = 3,159.77 × 1,169.13
  4. Step 4: Simplify right side
    2,108.42x = 3,694,176.05
  5. Step 5: Solve for x
    x = 3,694,176.05/2,108.42
  6. Step 6: Final answer
    x = 1,752.11

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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.