Home / 3,143.08-4,339.62-1,964.68

Finding the Fourth Proportional to 3,143.08, 4,339.62 and 1,964.68

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Solution

The fourth proportional to 3,143.08, 4,339.62 and 1,964.68 is: 2,712.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,143.08 : 4,339.62 = 1,964.68 : x
  2. Step 2: Convert to fraction form
    3,143.08/4,339.62 = 1,964.68/x
  3. Step 3: Cross multiply
    3,143.08x = 4,339.62 × 1,964.68
  4. Step 4: Simplify right side
    3,143.08x = 8,525,964.62
  5. Step 5: Solve for x
    x = 8,525,964.62/3,143.08
  6. Step 6: Final answer
    x = 2,712.61

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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.