Home / 1,025.14-1,537.39-331.66

Finding the Fourth Proportional to 1,025.14, 1,537.39 and 331.66

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Solution

The fourth proportional to 1,025.14, 1,537.39 and 331.66 is: 497.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025.14 : 1,537.39 = 331.66 : x
  2. Step 2: Convert to fraction form
    1,025.14/1,537.39 = 331.66/x
  3. Step 3: Cross multiply
    1,025.14x = 1,537.39 × 331.66
  4. Step 4: Simplify right side
    1,025.14x = 509,890.77
  5. Step 5: Solve for x
    x = 509,890.77/1,025.14
  6. Step 6: Final answer
    x = 497.39

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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.