Home / 3,034.80-4,185.24-1,987.44

Finding the Fourth Proportional to 3,034.80, 4,185.24 and 1,987.44

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Solution

The fourth proportional to 3,034.80, 4,185.24 and 1,987.44 is: 2,740.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,034.80 : 4,185.24 = 1,987.44 : x
  2. Step 2: Convert to fraction form
    3,034.80/4,185.24 = 1,987.44/x
  3. Step 3: Cross multiply
    3,034.80x = 4,185.24 × 1,987.44
  4. Step 4: Simplify right side
    3,034.80x = 8,317,913.39
  5. Step 5: Solve for x
    x = 8,317,913.39/3,034.80
  6. Step 6: Final answer
    x = 2,740.84

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1.5x scale

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.