Home / 3,311.40-4,967.10-2,079.68

Finding the Fourth Proportional to 3,311.40, 4,967.10 and 2,079.68

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Solution

The fourth proportional to 3,311.40, 4,967.10 and 2,079.68 is: 3,119.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.40 : 4,967.10 = 2,079.68 : x
  2. Step 2: Convert to fraction form
    3,311.40/4,967.10 = 2,079.68/x
  3. Step 3: Cross multiply
    3,311.40x = 4,967.10 × 2,079.68
  4. Step 4: Simplify right side
    3,311.40x = 10,329,953.69
  5. Step 5: Solve for x
    x = 10,329,953.69/3,311.40
  6. Step 6: Final answer
    x = 3,119.51

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.