Home / 2,025.18-3,037.65-638.48

Finding the Fourth Proportional to 2,025.18, 3,037.65 and 638.48

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Solution

The fourth proportional to 2,025.18, 3,037.65 and 638.48 is: 957.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,025.18 : 3,037.65 = 638.48 : x
  2. Step 2: Convert to fraction form
    2,025.18/3,037.65 = 638.48/x
  3. Step 3: Cross multiply
    2,025.18x = 3,037.65 × 638.48
  4. Step 4: Simplify right side
    2,025.18x = 1,939,487.56
  5. Step 5: Solve for x
    x = 1,939,487.56/2,025.18
  6. Step 6: Final answer
    x = 957.69

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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.