Home / 2,635.09-3,638.11-1,691.28

Finding the Fourth Proportional to 2,635.09, 3,638.11 and 1,691.28

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Solution

The fourth proportional to 2,635.09, 3,638.11 and 1,691.28 is: 2,335.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,635.09 : 3,638.11 = 1,691.28 : x
  2. Step 2: Convert to fraction form
    2,635.09/3,638.11 = 1,691.28/x
  3. Step 3: Cross multiply
    2,635.09x = 3,638.11 × 1,691.28
  4. Step 4: Simplify right side
    2,635.09x = 6,153,076.00
  5. Step 5: Solve for x
    x = 6,153,076.00/2,635.09
  6. Step 6: Final answer
    x = 2,335.06

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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.