Home / 2,119.51-2,924.83-1,175.24

Finding the Fourth Proportional to 2,119.51, 2,924.83 and 1,175.24

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Solution

The fourth proportional to 2,119.51, 2,924.83 and 1,175.24 is: 1,621.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119.51 : 2,924.83 = 1,175.24 : x
  2. Step 2: Convert to fraction form
    2,119.51/2,924.83 = 1,175.24/x
  3. Step 3: Cross multiply
    2,119.51x = 2,924.83 × 1,175.24
  4. Step 4: Simplify right side
    2,119.51x = 3,437,377.21
  5. Step 5: Solve for x
    x = 3,437,377.21/2,119.51
  6. Step 6: Final answer
    x = 1,621.78

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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.