Home / 3,395.28-4,684.92-2,278.08

Finding the Fourth Proportional to 3,395.28, 4,684.92 and 2,278.08

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Solution

The fourth proportional to 3,395.28, 4,684.92 and 2,278.08 is: 3,143.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,395.28 : 4,684.92 = 2,278.08 : x
  2. Step 2: Convert to fraction form
    3,395.28/4,684.92 = 2,278.08/x
  3. Step 3: Cross multiply
    3,395.28x = 4,684.92 × 2,278.08
  4. Step 4: Simplify right side
    3,395.28x = 10,672,622.55
  5. Step 5: Solve for x
    x = 10,672,622.55/3,395.28
  6. Step 6: Final answer
    x = 3,143.37

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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.