Home / 3,116.07-4,297.92-2,119.58

Finding the Fourth Proportional to 3,116.07, 4,297.92 and 2,119.58

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Solution

The fourth proportional to 3,116.07, 4,297.92 and 2,119.58 is: 2,923.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,116.07 : 4,297.92 = 2,119.58 : x
  2. Step 2: Convert to fraction form
    3,116.07/4,297.92 = 2,119.58/x
  3. Step 3: Cross multiply
    3,116.07x = 4,297.92 × 2,119.58
  4. Step 4: Simplify right side
    3,116.07x = 9,109,785.27
  5. Step 5: Solve for x
    x = 9,109,785.27/3,116.07
  6. Step 6: Final answer
    x = 2,923.49

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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.