Home / 2,025.09-3,037.76-638.47

Finding the Fourth Proportional to 2,025.09, 3,037.76 and 638.47

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Solution

The fourth proportional to 2,025.09, 3,037.76 and 638.47 is: 957.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,025.09 : 3,037.76 = 638.47 : x
  2. Step 2: Convert to fraction form
    2,025.09/3,037.76 = 638.47/x
  3. Step 3: Cross multiply
    2,025.09x = 3,037.76 × 638.47
  4. Step 4: Simplify right side
    2,025.09x = 1,939,521.63
  5. Step 5: Solve for x
    x = 1,939,521.63/2,025.09
  6. Step 6: Final answer
    x = 957.75

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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.