Home / 1,025.14-1,537.80-331.88

Finding the Fourth Proportional to 1,025.14, 1,537.80 and 331.88

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Solution

The fourth proportional to 1,025.14, 1,537.80 and 331.88 is: 497.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025.14 : 1,537.80 = 331.88 : x
  2. Step 2: Convert to fraction form
    1,025.14/1,537.80 = 331.88/x
  3. Step 3: Cross multiply
    1,025.14x = 1,537.80 × 331.88
  4. Step 4: Simplify right side
    1,025.14x = 510,365.06
  5. Step 5: Solve for x
    x = 510,365.06/1,025.14
  6. Step 6: Final answer
    x = 497.85

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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.