Home / 2,638.50-3,639.51-1,753.98

Finding the Fourth Proportional to 2,638.50, 3,639.51 and 1,753.98

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Solution

The fourth proportional to 2,638.50, 3,639.51 and 1,753.98 is: 2,419.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,638.50 : 3,639.51 = 1,753.98 : x
  2. Step 2: Convert to fraction form
    2,638.50/3,639.51 = 1,753.98/x
  3. Step 3: Cross multiply
    2,638.50x = 3,639.51 × 1,753.98
  4. Step 4: Simplify right side
    2,638.50x = 6,383,627.75
  5. Step 5: Solve for x
    x = 6,383,627.75/2,638.50
  6. Step 6: Final answer
    x = 2,419.42

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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.