Home / 1,635.03-2,257.49-1,256.28

Finding the Fourth Proportional to 1,635.03, 2,257.49 and 1,256.28

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Solution

The fourth proportional to 1,635.03, 2,257.49 and 1,256.28 is: 1,734.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,635.03 : 2,257.49 = 1,256.28 : x
  2. Step 2: Convert to fraction form
    1,635.03/2,257.49 = 1,256.28/x
  3. Step 3: Cross multiply
    1,635.03x = 2,257.49 × 1,256.28
  4. Step 4: Simplify right side
    1,635.03x = 2,836,033.26
  5. Step 5: Solve for x
    x = 2,836,033.26/1,635.03
  6. Step 6: Final answer
    x = 1,734.55

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Double scale
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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.