Home / 3,918.96-5,870.76-2,272.05

Finding the Fourth Proportional to 3,918.96, 5,870.76 and 2,272.05

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Solution

The fourth proportional to 3,918.96, 5,870.76 and 2,272.05 is: 3,403.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918.96 : 5,870.76 = 2,272.05 : x
  2. Step 2: Convert to fraction form
    3,918.96/5,870.76 = 2,272.05/x
  3. Step 3: Cross multiply
    3,918.96x = 5,870.76 × 2,272.05
  4. Step 4: Simplify right side
    3,918.96x = 13,338,660.26
  5. Step 5: Solve for x
    x = 13,338,660.26/3,918.96
  6. Step 6: Final answer
    x = 3,403.62

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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.