Home / 3,393.53-4,679.28-2,133.05

Finding the Fourth Proportional to 3,393.53, 4,679.28 and 2,133.05

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Solution

The fourth proportional to 3,393.53, 4,679.28 and 2,133.05 is: 2,941.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,393.53 : 4,679.28 = 2,133.05 : x
  2. Step 2: Convert to fraction form
    3,393.53/4,679.28 = 2,133.05/x
  3. Step 3: Cross multiply
    3,393.53x = 4,679.28 × 2,133.05
  4. Step 4: Simplify right side
    3,393.53x = 9,981,138.20
  5. Step 5: Solve for x
    x = 9,981,138.20/3,393.53
  6. Step 6: Final answer
    x = 2,941.23

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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.