Home / 1,638.05-2,258.97-1,264.44

Finding the Fourth Proportional to 1,638.05, 2,258.97 and 1,264.44

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Solution

The fourth proportional to 1,638.05, 2,258.97 and 1,264.44 is: 1,743.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638.05 : 2,258.97 = 1,264.44 : x
  2. Step 2: Convert to fraction form
    1,638.05/2,258.97 = 1,264.44/x
  3. Step 3: Cross multiply
    1,638.05x = 2,258.97 × 1,264.44
  4. Step 4: Simplify right side
    1,638.05x = 2,856,332.03
  5. Step 5: Solve for x
    x = 2,856,332.03/1,638.05
  6. Step 6: Final answer
    x = 1,743.74

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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.