Home / 2,215.44-3,325.22-1,120.58

Finding the Fourth Proportional to 2,215.44, 3,325.22 and 1,120.58

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Solution

The fourth proportional to 2,215.44, 3,325.22 and 1,120.58 is: 1,681.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,215.44 : 3,325.22 = 1,120.58 : x
  2. Step 2: Convert to fraction form
    2,215.44/3,325.22 = 1,120.58/x
  3. Step 3: Cross multiply
    2,215.44x = 3,325.22 × 1,120.58
  4. Step 4: Simplify right side
    2,215.44x = 3,726,169.47
  5. Step 5: Solve for x
    x = 3,726,169.47/2,215.44
  6. Step 6: Final answer
    x = 1,681.91

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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.