Home / 3,948.67-5,918.89-1,607.66

Finding the Fourth Proportional to 3,948.67, 5,918.89 and 1,607.66

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Solution

The fourth proportional to 3,948.67, 5,918.89 and 1,607.66 is: 2,409.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948.67 : 5,918.89 = 1,607.66 : x
  2. Step 2: Convert to fraction form
    3,948.67/5,918.89 = 1,607.66/x
  3. Step 3: Cross multiply
    3,948.67x = 5,918.89 × 1,607.66
  4. Step 4: Simplify right side
    3,948.67x = 9,515,562.70
  5. Step 5: Solve for x
    x = 9,515,562.70/3,948.67
  6. Step 6: Final answer
    x = 2,409.81

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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.