Home / 3,945.79-5,918.67-1,607.06

Finding the Fourth Proportional to 3,945.79, 5,918.67 and 1,607.06

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Solution

The fourth proportional to 3,945.79, 5,918.67 and 1,607.06 is: 2,410.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945.79 : 5,918.67 = 1,607.06 : x
  2. Step 2: Convert to fraction form
    3,945.79/5,918.67 = 1,607.06/x
  3. Step 3: Cross multiply
    3,945.79x = 5,918.67 × 1,607.06
  4. Step 4: Simplify right side
    3,945.79x = 9,511,657.81
  5. Step 5: Solve for x
    x = 9,511,657.81/3,945.79
  6. Step 6: Final answer
    x = 2,410.58

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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.