Home / 3,918.99-5,875.40-2,682.65

Finding the Fourth Proportional to 3,918.99, 5,875.40 and 2,682.65

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Solution

The fourth proportional to 3,918.99, 5,875.40 and 2,682.65 is: 4,021.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918.99 : 5,875.40 = 2,682.65 : x
  2. Step 2: Convert to fraction form
    3,918.99/5,875.40 = 2,682.65/x
  3. Step 3: Cross multiply
    3,918.99x = 5,875.40 × 2,682.65
  4. Step 4: Simplify right side
    3,918.99x = 15,761,599.02
  5. Step 5: Solve for x
    x = 15,761,599.02/3,918.99
  6. Step 6: Final answer
    x = 4,021.86

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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.