Home / 2,918.86-4,028.15-1,660.03

Finding the Fourth Proportional to 2,918.86, 4,028.15 and 1,660.03

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Solution

The fourth proportional to 2,918.86, 4,028.15 and 1,660.03 is: 2,290.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.86 : 4,028.15 = 1,660.03 : x
  2. Step 2: Convert to fraction form
    2,918.86/4,028.15 = 1,660.03/x
  3. Step 3: Cross multiply
    2,918.86x = 4,028.15 × 1,660.03
  4. Step 4: Simplify right side
    2,918.86x = 6,686,857.24
  5. Step 5: Solve for x
    x = 6,686,857.24/2,918.86
  6. Step 6: Final answer
    x = 2,290.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.