Home / 3,489.31-5,234.73-1,931.58

Finding the Fourth Proportional to 3,489.31, 5,234.73 and 1,931.58

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Solution

The fourth proportional to 3,489.31, 5,234.73 and 1,931.58 is: 2,897.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,489.31 : 5,234.73 = 1,931.58 : x
  2. Step 2: Convert to fraction form
    3,489.31/5,234.73 = 1,931.58/x
  3. Step 3: Cross multiply
    3,489.31x = 5,234.73 × 1,931.58
  4. Step 4: Simplify right side
    3,489.31x = 10,111,308.38
  5. Step 5: Solve for x
    x = 10,111,308.38/3,489.31
  6. Step 6: Final answer
    x = 2,897.80

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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.