Home / 2,025.35-3,037.88-638.66

Finding the Fourth Proportional to 2,025.35, 3,037.88 and 638.66

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Solution

The fourth proportional to 2,025.35, 3,037.88 and 638.66 is: 957.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,025.35 : 3,037.88 = 638.66 : x
  2. Step 2: Convert to fraction form
    2,025.35/3,037.88 = 638.66/x
  3. Step 3: Cross multiply
    2,025.35x = 3,037.88 × 638.66
  4. Step 4: Simplify right side
    2,025.35x = 1,940,171.29
  5. Step 5: Solve for x
    x = 1,940,171.29/2,025.35
  6. Step 6: Final answer
    x = 957.94

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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.