Home / 3,274.78-4,517.99-2,156.36

Finding the Fourth Proportional to 3,274.78, 4,517.99 and 2,156.36

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Solution

The fourth proportional to 3,274.78, 4,517.99 and 2,156.36 is: 2,974.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,274.78 : 4,517.99 = 2,156.36 : x
  2. Step 2: Convert to fraction form
    3,274.78/4,517.99 = 2,156.36/x
  3. Step 3: Cross multiply
    3,274.78x = 4,517.99 × 2,156.36
  4. Step 4: Simplify right side
    3,274.78x = 9,742,412.92
  5. Step 5: Solve for x
    x = 9,742,412.92/3,274.78
  6. Step 6: Final answer
    x = 2,974.98

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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.