Home / 3,261.09-4,499.12-2,142.63

Finding the Fourth Proportional to 3,261.09, 4,499.12 and 2,142.63

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Solution

The fourth proportional to 3,261.09, 4,499.12 and 2,142.63 is: 2,956.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,261.09 : 4,499.12 = 2,142.63 : x
  2. Step 2: Convert to fraction form
    3,261.09/4,499.12 = 2,142.63/x
  3. Step 3: Cross multiply
    3,261.09x = 4,499.12 × 2,142.63
  4. Step 4: Simplify right side
    3,261.09x = 9,639,949.49
  5. Step 5: Solve for x
    x = 9,639,949.49/3,261.09
  6. Step 6: Final answer
    x = 2,956.05

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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.