Home / 3,079.81-4,245.15-2,406.44

Finding the Fourth Proportional to 3,079.81, 4,245.15 and 2,406.44

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Solution

The fourth proportional to 3,079.81, 4,245.15 and 2,406.44 is: 3,316.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,079.81 : 4,245.15 = 2,406.44 : x
  2. Step 2: Convert to fraction form
    3,079.81/4,245.15 = 2,406.44/x
  3. Step 3: Cross multiply
    3,079.81x = 4,245.15 × 2,406.44
  4. Step 4: Simplify right side
    3,079.81x = 10,215,698.77
  5. Step 5: Solve for x
    x = 10,215,698.77/3,079.81
  6. Step 6: Final answer
    x = 3,316.99

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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.