Home / 3,079.45-4,241.01-2,881.81

Finding the Fourth Proportional to 3,079.45, 4,241.01 and 2,881.81

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Solution

The fourth proportional to 3,079.45, 4,241.01 and 2,881.81 is: 3,968.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,079.45 : 4,241.01 = 2,881.81 : x
  2. Step 2: Convert to fraction form
    3,079.45/4,241.01 = 2,881.81/x
  3. Step 3: Cross multiply
    3,079.45x = 4,241.01 × 2,881.81
  4. Step 4: Simplify right side
    3,079.45x = 12,221,785.03
  5. Step 5: Solve for x
    x = 12,221,785.03/3,079.45
  6. Step 6: Final answer
    x = 3,968.82

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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.