Home / 2,169.91-2,994.48-1,175.20

Finding the Fourth Proportional to 2,169.91, 2,994.48 and 1,175.20

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Solution

The fourth proportional to 2,169.91, 2,994.48 and 1,175.20 is: 1,621.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,169.91 : 2,994.48 = 1,175.20 : x
  2. Step 2: Convert to fraction form
    2,169.91/2,994.48 = 1,175.20/x
  3. Step 3: Cross multiply
    2,169.91x = 2,994.48 × 1,175.20
  4. Step 4: Simplify right side
    2,169.91x = 3,519,112.33
  5. Step 5: Solve for x
    x = 3,519,112.33/2,169.91
  6. Step 6: Final answer
    x = 1,621.77

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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.