Home / 1,635.88-2,455.44-1,108.72

Finding the Fourth Proportional to 1,635.88, 2,455.44 and 1,108.72

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Solution

The fourth proportional to 1,635.88, 2,455.44 and 1,108.72 is: 1,664.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,635.88 : 2,455.44 = 1,108.72 : x
  2. Step 2: Convert to fraction form
    1,635.88/2,455.44 = 1,108.72/x
  3. Step 3: Cross multiply
    1,635.88x = 2,455.44 × 1,108.72
  4. Step 4: Simplify right side
    1,635.88x = 2,722,395.44
  5. Step 5: Solve for x
    x = 2,722,395.44/1,635.88
  6. Step 6: Final answer
    x = 1,664.18

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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.