Home / 3,246.41-4,481.20-1,987.17

Finding the Fourth Proportional to 3,246.41, 4,481.20 and 1,987.17

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Solution

The fourth proportional to 3,246.41, 4,481.20 and 1,987.17 is: 2,743.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,246.41 : 4,481.20 = 1,987.17 : x
  2. Step 2: Convert to fraction form
    3,246.41/4,481.20 = 1,987.17/x
  3. Step 3: Cross multiply
    3,246.41x = 4,481.20 × 1,987.17
  4. Step 4: Simplify right side
    3,246.41x = 8,904,924.10
  5. Step 5: Solve for x
    x = 8,904,924.10/3,246.41
  6. Step 6: Final answer
    x = 2,743.01

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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.