Home / 2,305.28-3,434.64-2,195.20

Finding the Fourth Proportional to 2,305.28, 3,434.64 and 2,195.20

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Solution

The fourth proportional to 2,305.28, 3,434.64 and 2,195.20 is: 3,270.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,305.28 : 3,434.64 = 2,195.20 : x
  2. Step 2: Convert to fraction form
    2,305.28/3,434.64 = 2,195.20/x
  3. Step 3: Cross multiply
    2,305.28x = 3,434.64 × 2,195.20
  4. Step 4: Simplify right side
    2,305.28x = 7,539,721.73
  5. Step 5: Solve for x
    x = 7,539,721.73/2,305.28
  6. Step 6: Final answer
    x = 3,270.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.