Home / 2,987.03-4,121.14-1,660.48

Finding the Fourth Proportional to 2,987.03, 4,121.14 and 1,660.48

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Solution

The fourth proportional to 2,987.03, 4,121.14 and 1,660.48 is: 2,290.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,987.03 : 4,121.14 = 1,660.48 : x
  2. Step 2: Convert to fraction form
    2,987.03/4,121.14 = 1,660.48/x
  3. Step 3: Cross multiply
    2,987.03x = 4,121.14 × 1,660.48
  4. Step 4: Simplify right side
    2,987.03x = 6,843,056.09
  5. Step 5: Solve for x
    x = 6,843,056.09/2,987.03
  6. Step 6: Final answer
    x = 2,290.92

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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.